| Count | Version |
|---|
| 1 | *_* |
| 1 | Debian / GNU |
| 2 | Debian/GNU |
| 6 | Fordaq US |
| 1 | GOOD LUCK ! |
| 1 | Gyust smtp |
| 1922 | OMC net |
| 27 | PCextreme B.V. |
| 1 | Phase IX/4 |
| 2 | WHT |
| 1 | What are you looking at here? |
| 1 | ZSME Tarnów |
| 1 | ex-USSR only |
| 1 | "Refservice mail server..." |
| 2 | **** COMMODORE C64 BASIC V2 **** |
| 1 | *LinuX* |
| 1 | *nix |
| 15 | - |
| 1 | -- Victor -- |
| 1 | -NIX |
| 4 | -Oo- |
| 1 | -c1- |
| 1 | -c2- |
| 1 | -secure- |
| 7 | -x- |
| 3 | . |
| 1 | .::MatRyc::. |
| 1 | / |
| 1 | /GNU |
| 1 | 0_0 |
| 6 | 1.1.11 |
| 9 | 1.1.13 |
| 1 | 143nk 143lk |
| 1 | 1Ago Mailserver |
| 4 | 1PT.EU |
| 1 | 2 |
| 6 | 2.0.11 |
| 48 | 2.0.13 |
| 4 | 2.0.16 |
| 1 | 2.0.16-20031022 |
| 4 | 2.0.19 |
| 1 | 2.0.19-20040312 |
| 6 | 2.0.20 |
| 9 | 2.0.6 |
| 1 | 2.1-rc19 |
| 3 | 2.1.0-pre-20040209 |
| 13 | 2.1.1 |
| 12 | 2.1.4 |
| 21 | 2.1.5 |
| 10 | 2.1.6 |
| 41 | 2.10.0 |
| 411 | 2.10.1 |
| 4 | 2.10.1-MOD |
| 62 | 2.10.2 |
| 69 | 2.10.3 |
| 12 | 2.10.5 |
| 2 | 2.10.9 |
| 1 | 2.11-20130405 |
| 96 | 2.11.0 |
| 1 | 2.11.0 hosted on Ubuntu |
| 39 | 2.11.1 |
| 3 | 2.11.2 |
| 117 | 2.11.3 |
| 1 | 2.11.3-20141019 |
| 2 | 2.11.3/20141019 |
| 9 | 2.11.4 |
| 59 | 2.11.5 |
| 14 | 2.11.6 |
| 43 | 2.11.7 |
| 13 | 2.11.8 |
| 3 | 2.12-20140109 |
| 1 | 2.12-20140701 |
| 1 | 2.2-20040422 |
| 5 | 2.2.1 |
| 59 | 2.2.10 |
| 5 | 2.2.11 |
| 11 | 2.2.2 |
| 38 | 2.2.5 |
| 5 | 2.2.6 |
| 2 | 2.2.7 |
| 9 | 2.2.8 |
| 7 | 2.2.9 |
| 1 | 2.3-20050427 |
| 1 | 2.3-20051106 |
| 2 | 2.3.1 |
| 3 | 2.3.13 |
| 38 | 2.3.19 |
| 8 | 2.3.2 |
| 430 | 2.3.3 |
| 2 | 2.3.4 |
| 3 | 2.3.5 |
| 17 | 2.3.6 |
| 1 | 2.3.7 |
| 35 | 2.3.8 |
| 5 | 2.4-rc17 |
| 3 | 2.4.0 |
| 64 | 2.4.1 |
| 1 | 2.4.10 |
| 1 | 2.4.11 |
| 1 | 2.4.14 |
| 3 | 2.4.15 |
| 7 | 2.4.3 |
| 39 | 2.4.5 |
| 19 | 2.4.6 |
| 5 | 2.4.7 |
| 3 | 2.4.9 |
| 2 | 2.5.0 |
| 32 | 2.5.1 |
| 1 | 2.5.10 |
| 1 | 2.5.13 |
| 2 | 2.5.14 |
| 2 | 2.5.17 |
| 1 | 2.5.2 |
| 1 | 2.5.3 |
| 2 | 2.5.4 |
| 72 | 2.5.5 |
| 74 | 2.5.6 |
| 1 | 2.5.7 |
| 6 | 2.5.9 |
| 5 | 2.6.1 |
| 2 | 2.6.19 |
| 7 | 2.6.2 |
| 3 | 2.6.3 |
| 89 | 2.6.5 |
| 974 | 2.6.6 |
| 10 | 2.6.6 |
| 3 | 2.6.7 |
| 2 | 2.7-20100117 |
| 153 | 2.7.0 |
| 76 | 2.7.1 |
| 1 | 2.7.1, Debian/GNU |
| 29 | 2.7.2 |
| 1 | 2.7.2-RC2 |
| 3 | 2.7.3 |
| 16 | 2.7.4 |
| 4 | 2.7.7 |
| 1 | 2.7.8 |
| 2 | 2.8-20100323 |
| 11 | 2.8.0 |
| 2 | 2.8.1 |
| 9 | 2.8.10 |
| 7 | 2.8.11 |
| 5 | 2.8.12 |
| 1 | 2.8.13 |
| 92 | 2.8.14 |
| 17 | 2.8.17 |
| 6 | 2.8.2 |
| 21 | 2.8.3 |
| 26 | 2.8.4 |
| 14 | 2.8.5 |
| 2 | 2.8.6 |
| 18 | 2.8.7 |
| 10 | 2.8.8 |
| 7 | 2.8.9 |
| 7 | 2.9.0 |
| 69 | 2.9.1 |
| 14 | 2.9.2 |
| 21 | 2.9.3 |
| 36 | 2.9.4 |
| 74 | 2.9.5 |
| 295 | 2.9.6 |
| 1 | 2.9.6,reverse0 |
| 1 | 2.9.6/GNU |
| 2 | 2.9.6/SWiX |
| 6 | 2.9.7 |
| 1 | 2.9.8 |
| 3 | 2.9.9 |
| 1 | 2.ex-studios.net |
| 1 | 20020614 |
| 1 | 2003 edo-DT |
| 2 | 20140227 |
| 9 | 20140814 |
| 2 | 202.internetmediaholding.com |
| 2 | 28deAGOSTO |
| 223 | 2Fast Internet Services |
| 58 | 3.0.0 |
| 88 | 3.0.1 |
| 17 | 3.0.2 |
| 49 | 3.0.3 |
| 2 | 3.0.3 - Slackware 64-bit |
| 13 | 3.0.4 |
| 208 | 3.0.5 |
| 1 | 3.1-20150712 |
| 2 | 3.1-20160214 |
| 119 | 3.1.0 |
| 117 | 3.1.1 |
| 3 | 3.1.1 - NO UCE |
| 1 | 3.1.1 on some unix system |
| 1 | 3.1.2 |
| 3 | 3.2-20160612 |
| 2 | 3.2-20160625 |
| 3 | 3.2-20160730 |
| 1 | 3.2-20160828 |
| 1 | 3.7.987 |
| 1 | 31337 |
| 1 | 4.ex-studios.net |
| 1 | 42 |
| 1 | 4CliC |
| 1 | 4ego nado? |
| 2 | 51wm.com |
| 1 | 577 Foundation |
| 2 | 5f5f7a backed with linus' work |
| 1 | 6.1 |
| 1 | 80.241.217.98 |
| 2 | 93.184.70.28.vnet.sk |
| 1 | 96 |
| 26 | 99.9.9 |
| 53 | 99.9.9+B4rteK |
| 5 | 99.9.9+GLP |
| 1 | 99.9.9+MIRA |
| 1 | <%= operatingsystem %> |
| 1 | <3 |
| 1 | ? |
| 1 | @@DEBIAN@@ |
| 794 | @@DISTRO@@ |
| 2 | @erik 2016 |
| 1 | @erik&lukas 2014 |
| 1 | @erik&lukas 2015 |
| 1 | A STRANGE GAME. THE ONLY WINNING |
| 2 | A-IT mail server |
| 1 | AAC |
| 1 | ACCESS-Net V4 |
| 25 | ACFS sfs3 |
| 1 | ACW Mailer |
| 1 | ADSU Mail Server |
| 1 | AE Partner |
| 1 | AGAMON |
| 26 | AIX |
| 1 | AIX RS/6000 |
| 1 | ALBIS Service GmbH |
| 1 | ALL ACTIVITY IS LOGGED! |
| 2 | ALT Linux |
| 3 | ALT255 |
| 1 | ALTLinux/GNU |
| 1 | AM3 Cloud Service |
| 1 | AMK |
| 1 | AMX |
| 1 | ANDROID |
| 1 | ANKOKUDAN server |
| 1 | ANTYSPAM |
| 1 | AP MX |
| 1 | APROCON |
| 12 | ARBOR MailScanner |
| 1 | ARBOR Mailscanner |
| 1 | ARC_Mail |
| 1 | ARTEFACT.FR |
| 1 | ASGNF |
| 1 | ASSP ANTI SPAM |
| 2 | ASSP/PF |
| 1 | AUD.COM |
| 2 | AUF Montreal |
| 1 | AVAS |
| 1 | AW-CORP |
| 1 | AWARD PRO by Cherep |
| 4 | AWS |
| 1 | AYMABTU |
| 1 | AZISTA |
| 3 | AZYLE Primary |
| 100 | AangetekendMailen |
| 1 | AbogadosMenor |
| 1 | Abon |
| 1 | Absolacom |
| 1 | AbulEdu / Horizon |
| 1 | Access Restriction applies! |
| 1 | Achika ^_^ |
| 1 | Adaptiv Design |
| 1 | Addoop |
| 1 | Admin |
| 1 | Advit |
| 1 | Affinitic |
| 1 | Agnux's Lennon |
| 1 | AgrifoodSMTP |
| 1 | Ahoy cowboy, get ready to do thi |
| 1 | Ahoy! Ubuntu |
| 1 | Aircomm SMTP |
| 1 | Akiltoor |
| 1 | AklawFirm |
| 1 | AktivAvignon |
| 2 | Alarix mail solutions |
| 1 | Alarmismus |
| 2 | Albany Schools Server |
| 2 | Alcatel |
| 1 | Alderich-Info.com |
| 2 | AlfaNetworks.com.br |
| 2 | Algo |
| 1 | Alien |
| 2 | AllYourBaseAreBelongToUs |
| 1 | Alles wird aus Hack gemacht! |
| 1 | Alpha IT Consulting Solutions LT |
| 1 | Alpha Pratirion MailServer |
| 3 | AlphaSys Pty Ltd |
| 1 | AltLinux/GNU |
| 2 | Altair |
| 2 | Always sleep with one eye open |
| 1 | American |
| 1 | Amiga 1200 PPC |
| 1 | Amiga 500 Workbench |
| 1 | Amiga/MIPS |
| 1 | Amiga2000/GNU |
| 1 | AmigaOS |
| 1 | AmigaOS 1.3 |
| 3 | AmigaOS 3.1 |
| 5 | AmigaOS/GNU |
| 1 | AndoLAN4 |
| 11 | AndoLan 4 |
| 1 | Android |
| 1 | AndrzejL.eu |
| 1 | Ange Optimization |
| 1 | Angel |
| 1 | Angel v5.2 |
| 2 | AntiSpam |
| 1 | AntiSpam - if failure mailto:adm |
| 1 | AntiSpam Protected |
| 1 | Antispam2 |
| 1 | AnubisSMTP |
| 1 | Apollon/Mailer |
| 1 | Ararat |
| 6 | Arch |
| 8 | Arch Linux |
| 1 | Arch Linux/GNU |
| 1 | Arch/GNU |
| 1 | ArchLinux |
| 1 | Archlinux |
| 1 | Archlinux GNU/Linux |
| 1 | Archlinux/GNU |
| 1 | Are vi users secretly plotting t |
| 1 | Are you GNU here? |
| 1 | Arena Software/Centos |
| 1 | Armored_Fist |
| 1 | Arrrr |
| 3 | Artefact |
| 1 | Artemis/Mailer |
| 1 | Arya |
| 3 | AscoTlc |
| 1 | Association Cumulogranite |
| 3 | Association Franciliens.net |
| 1 | AtB |
| 1 | Atlas Choice |
| 1 | AttNet Mailserver |
| 1 | Ausbildungs-Wolken |
| 4 | Austral Mail System |
| 2 | Auto Vittani srl |
| 1 | Autoservice Bernard |
| 1 | Avanquest Mail Service |
| 4 | AvianOS |
| 1 | Awesome |
| 11 | Ayverliss Communication |
| 1 | Azure |
| 1 | Azure/GNU |
| 3 | Azweb/Internet |
| 1 | B0T538L |
| 64 | B2D/GNU |
| 1 | BAE |
| 1 | BAER |
| 1 | BAREED |
| 4 | BBOOSTER |
| 1 | BBanda/Fax-Server |
| 1 | BETAVERSiON Systems |
| 1 | BEW |
| 1 | BEWARE! |
| 1 | BIA-NIGER Custom Mail System |
| 1 | BIBLIOCLUB.RU |
| 1 | BIG-EYE |
| 2 | BITFIT Debian/GNU |
| 1 | BNE IT Team |
| 1 | BNL |
| 1 | BOMBER-NETWORKS |
| 1 | BREKOMpowered |
| 1 | BRINKHAUS.IT |
| 1 | BRODOS AG Mailserver |
| 3 | BSD |
| 7 | BSD ^_^ |
| 1 | BSE-Server |
| 1 | BSystems |
| 1 | BTmail |
| 2 | BU12 |
| 1 | BUbuntu |
| 2 | BWS |
| 1 | BabbloOS |
| 1 | Backup |
| 2 | Backup MX |
| 1 | Backup-MX |
| 1 | Badaboom |
| 3 | BeOS |
| 1 | Beijing Control Infrared Techniq |
| 2 | BestSolution.at GmbH |
| 1 | Beta |
| 1 | BetterHomes Mail Server |
| 1 | Beyotch/GNU |
| 1 | BibliotecaCiechi |
| 1 | Biogenic Communicator |
| 1 | Bitecore MailServer |
| 1 | Bitfuchs-Mailserver |
| 2 | BizDev & Strategy |
| 1 | Bla-Bla-Bla/GNU |
| 1 | BlackHole |
| 1 | BlackMail |
| 1 | Blafoo |
| 1 | Blinu - Inarsoft |
| 11 | BluBOX |
| 41 | BluBOX OS |
| 204 | BlueMind |
| 2 | Blueline |
| 1 | Blueline/Gulfsat |
| 1 | BoRMail |
| 1 | Bodireel |
| 1 | Boesner Mail System |
| 1 | BrByte |
| 1 | Brahma Kumaris Russia |
| 1 | Braintower SMS Gateway |
| 1 | Breeding Rabbits since 2006 |
| 1 | Brezel OS |
| 1 | BreziOS |
| 1 | Bringmeister |
| 1 | BriscoeWong |
| 1 | BrokenServer |
| 1 | Brokenpipe.it |
| 1 | Brunos Server |
| 1 | Bubuntu |
| 1 | Buildinvest |
| 1 | Buu |
| 1 | Buyerat |
| 1 | Buzz! Ubuntu |
| 1 | By GESS-IT-Muenchen.de |
| 1 | Byjemdesigns |
| 4 | C64-Its really fast |
| 1 | C64/GNU |
| 1 | CADN/Inbound |
| 1 | CAPVIGIE/GNU |
| 1 | CCPS |
| 1 | CDR-Mediared |
| 1 | CEDfonia |
| 2 | CELT - Va. Ventana |
| 3 | CENTOS |
| 1 | CENTOS 7 |
| 2 | CENTOS/GNU |
| 6 | CEPANET |
| 1 | CERT.at |
| 1 | CESOPOL |
| 2 | CG49 |
| 4 | CIASC |
| 2 | CINET Empresarial |
| 1 | CIRCL |
| 1 | CKOTECH |
| 1 | CLUSTEDGE edition |
| 2 | CM4all Business |
| 1 | CMKS Mail server @ Debian/GNU |
| 1 | CODIUB |
| 2 | COINPEL |
| 1 | COOPESPARTILLAR |
| 1 | CORINEX |
| 1 | CORPICO |
| 2 | COSIMO |
| 3 | COSPEC |
| 1 | COSSMA |
| 1 | COTACOES ECOMPRAS |
| 1 | CPE Sistemi Internal SMTP Server |
| 1 | CPM/8-bit |
| 1 | CRISOFT |
| 1 | CROSS |
| 2 | CS UNUD |
| 4 | CSyOP PUAN |
| 1 | CTI |
| 1 | CTSNet Internet Services |
| 1 | CVTEK |
| 2 | CYAN Secure Web |
| 2 | Caarapo |
| 1 | Cabsoft |
| 1 | Caffeine |
| 1 | California Business and Professi |
| 1 | CatCafe.tw |
| 1 | Cent-OS |
| 161 | CentOS |
| 1 | CentOS 5.5 |
| 1 | CentOS 6 |
| 3 | CentOS 6.5 |
| 1 | CentOS 7 |
| 3 | CentOS-6 |
| 12 | CentOS/GNU |
| 1 | CentOS5.3 |
| 2 | CentOs |
| 1 | CentOs/GNU |
| 1 | CentOs5 |
| 1 | CentalusMail 0.7.2-38 |
| 3 | Centaur |
| 2 | Centeq |
| 33 | Centos |
| 1 | Centos 5 Embedded |
| 1 | Centos 6.5 |
| 55 | Centos/GNU |
| 1 | Centos/RedHat |
| 2 | Centro de Computacao Cientifica |
| 1 | Cerkwa.net |
| 2 | CesCom |
| 1 | Chriskomm AS mailsystem |
| 2 | Chung.G/GNU |
| 2 | Church Community Builder |
| 1 | Cimeos |
| 1 | CissNet/v3.0.2 |
| 1 | City of Atlantis, deep in the Pe |
| 1 | CleareMailSolution |
| 19 | ClickMeIn |
| 2 | ClouDNS |
| 1 | Cloud Mailservers |
| 1 | Cloud N Co's mail server |
| 3 | CloudMail |
| 1 | Cloudun.org |
| 1 | Cloudvault |
| 2 | CodeGrease |
| 3 | Colsecor |
| 3 | ComNet |
| 1 | Comega7 |
| 1 | Comeye |
| 2 | Commodore 64 |
| 1 | Commodore VIC20 |
| 4 | Commodore64 |
| 1 | Commodore64 OS |
| 2 | Commodum |
| 1 | Commtech |
| 1 | Comodore 64 |
| 1 | Computer Science |
| 1 | Computer Troubleshooters Graz |
| 21 | Computerline Group Panel |
| 1 | Comune di Padova |
| 1 | Conectenos |
| 2 | Conexim Mail Platform |
| 1 | Confeed |
| 1 | Configured by Aroel |
| 1 | Configured by Kiyonori NAGASAKI |
| 1 | Consecom AG |
| 1 | Container |
| 1 | Contendro |
| 1 | Coop. Villa Maza |
| 1 | Cooperativa 30deAgosto |
| 3 | Cooperativa Brinkmann |
| 1 | Cooperativa Huanguelen |
| 1 | Cooperativa Morteros |
| 3 | Cooperativa Pozo del Molle |
| 3 | Cooperativa Tornquist - CELT |
| 1 | CoreOS |
| 1 | Corinex Vancouver Office |
| 1 | Corphos.nl |
| 1 | Cosimix |
| 2 | Couanouz.NET |
| 1 | Coucou |
| 1 | Coucou Ubuntu |
| 1 | Crasmedia B.V. |
| 2 | Cray Linux Environment |
| 1 | CreoDat |
| 1 | Crisis Management Center |
| 1 | CryptoOrBust |
| 2 | Csaw BV |
| 1 | Custom |
| 1 | Customized |
| 1 | Czumy.net |
| 2 | D&T Internet GbR |
| 1 | D&T Internet GmbH |
| 1 | D/G |
| 1 | D8 |
| 4 | DAEM - MAIL SERVER |
| 1 | DASA - Destilaria de Alcool Serr |
| 3 | DCC://Box v3.10 |
| 1 | DCC://Box v3.6.5 |
| 3 | DCC://Box v3.6.6 |
| 1 | DCC://Box v3.9 |
| 1 | DCC://Box v3.9.1 |
| 1 | DEBIAN |
| 1 | DEBIAN XMAILSRV |
| 2 | DEBIAN/GNU |
| 1 | DEC-Alpha-OSF1 |
| 1 | DEEPSPACE!! |
| 1 | DEF by Cherep |
| 1 | DEGRADO |
| 1 | DFD Server |
| 1 | DFixTek |
| 1 | DGCC |
| 1 | DHO mailgate |
| 2 | DICE Services |
| 3 | DIGITALCOOP |
| 1 | DIPcom s.r.o. |
| 1 | DISCOUNT-SURVEILLANCE/GNU |
| 5 | DJIGZO |
| 1 | DK |
| 1 | DLTT Mail Server |
| 1 | DNOPHOS |
| 1 | DOLIE LA GROSSE |
| 1 | DOS 3.33 |
| 1 | DRAFT |
| 1 | DSIN - Rectorat Amiens |
| 1 | DTE2 |
| 5 | DTNET |
| 1 | DVN |
| 1 | DW |
| 1 | DW Host - www.dwhost.com.br |
| 1 | DZMS006 |
| 1 | DaLuNET |
| 1 | Dante Rocks! |
| 1 | Dantes |
| 1 | Danthuf server |
| 1 | DarkBlaez |
| 1 | Das Windows 45 |
| 2 | Data-Westfalia |
| 1 | DataSIM SMTP Relay |
| 4 | Dataware |
| 1 | Dataxy |
| 1 | Dcide |
| 1 | De Voorkant |
| 1 | DeZender |
| 1 | DeadbyDawn |
| 1 | Deb |
| 1 | Debain |
| 2 | Debain/GNU |
| 298 | Debian |
| 1 | Debian 3.16.7-ckt25-2 |
| 1 | Debian 6 |
| 1 | Debian 7 FTW |
| 1 | Debian 7.0 |
| 1 | Debian 8 |
| 3 | Debian GNU |
| 38 | Debian GNU/Linux |
| 2 | Debian GNU/Linux 7.11 (wheezy |
| 1 | Debian GNU/Linux Woody |
| 1 | Debian GNU/Oignons |
| 4 | Debian GNU/kFreeBSD |
| 3 | Debian Jessie |
| 11 | Debian Lenny |
| 3 | Debian Linux |
| 1 | Debian Multiverse (68040 |
| 1 | Debian Postfix |
| 1 | Debian Stable |
| 3 | Debian Wheezy |
| 1 | Debian Wheezy 7.9/GNU |
| 40 | Debian Zeon Extension |
| 1 | Debian-armhf/GNU |
| 2 | Debian/BDB mhail |
| 1 | Debian/Boohgle |
| 1 | Debian/Fuck GNU |
| 3 | Debian/GNOUUUU |
| 286641 | Debian/GNU |
| 1 | Debian/GNU - 2.11.3 |
| 1 | Debian/GNU - Internet Libre |
| 2 | Debian/GNU - Outbound |
| 2 | Debian/GNU <3 |
| 1 | Debian/GNU @ domconf.net |
| 1 | Debian/GNU AT UNI CONSULTING |
| 2 | Debian/GNU AUF Paris |
| 1 | Debian/GNU Etch - 2.11.3 |
| 1 | Debian/GNU FUSS Girl1 |
| 22 | Debian/GNU Linux |
| 1 | Debian/GNU MaaaFackaaa |
| 1 | Debian/GNU Postfix |
| 5 | Debian/GNU TheBest - 2.11.2 |
| 1 | Debian/GNU Ubuntu |
| 1 | Debian/GNU by Heberge-HD |
| 1 | Debian/GNU configured by Zerodiv |
| 1 | Debian/GNU desna |
| 1 | Debian/GNU eksk.kz |
| 1 | Debian/GNU on Amiga 500 |
| 1 | Debian/GNU on C=64 |
| 1 | Debian/GNU rulez! |
| 1 | Debian/GNU running in skvely.net |
| 1 | Debian/GNU++ |
| 1 | Debian/GNU+OpenSSL-TLS |
| 1 | Debian/GNU, mail.klangspiel.ch |
| 1 | Debian/GNU. Keine Feier ohne Spe |
| 1 | Debian/GNU/Anu Anu |
| 1 | Debian/GNU/Ika20 |
| 1 | Debian/GNU/JB |
| 1 | Debian/GNU/Linux |
| 3 | Debian/GNU/Moar Titties |
| 1 | Debian/GNU/NSG 7.1.7 |
| 7 | Debian/GNU/NSG 7.3.12 |
| 45 | Debian/GNU/NSG 7.3.13 |
| 1 | Debian/GNU/NSG 7.3.8 |
| 1 | Debian/GNU/PrimalMedia.NZ |
| 21 | Debian/GNU/Puppet |
| 13 | Debian/GNU/Seeweb |
| 1 | Debian/GNU/lel |
| 2 | Debian/GNU2 |
| 1 | Debian/GNU_GPL |
| 1 | Debian/GNU_Hard_mail_server |
| 1 | Debian/GNUreng |
| 1 | Debian/GNUuuuu |
| 1 | Debian/Geek |
| 61 | Debian/Gnu |
| 1 | Debian/LOL |
| 4 | Debian/Linux |
| 1 | Debian/Mikael |
| 1 | Debian/Sarg |
| 1 | Debian/Server |
| 3 | Debian/UCW |
| 1 | Debian/Us3r/NoTaG Base |
| 1 | Debian/Us3r/Striped IT |
| 1 | Debian6 |
| 1 | Debian8 |
| 1 | Debiann |
| 4 | Debilian/GNU |
| 1 | Debuntu |
| 2 | Deco Mobili srl |
| 1 | Defiant |
| 1 | Del Software al Trabajo Comunita |
| 1 | Demolidor |
| 1 | Denkisys Ltd. welcomes you |
| 2 | Design Elements |
| 1 | Deux ponts Mail Relay |
| 1 | Devuan |
| 1 | Devuan/GNU |
| 1 | DiS |
| 1 | Digisat/Fax-Server |
| 1 | Digitalergonomics.ca |
| 1 | Digitalinfo |
| 2 | DildoOS |
| 1 | Diligence Groups |
| 1 | Dinde/GNU |
| 14 | Dings-IT Solutions B.V. |
| 1 | DistritoCH/Mailer |
| 1 | Distro 56k |
| 1 | Division Informatique Rectorat A |
| 1 | Divulcart Propaganda Ltda. |
| 1 | Dixi |
| 11 | Djigzo |
| 1 | Dobrun MX |
| 1 | Docent Solutions |
| 1 | Dockerized solution |
| 1 | Don't bother the Dragons |
| 3 | Don't mess with mages... |
| 1 | Don't tase me bro |
| 1 | Don't try to fuck with me! |
| 1 | Doolphy |
| 1 | Dorvack |
| 3 | DosEMU/GNU |
| 1 | Drachenfliegen |
| 141 | Dragon |
| 1 | DragonFly |
| 1 | DragonFly BSD |
| 1 | Dudule |
| 1 | Dune Technology SMTP SERVER |
| 2 | Durand |
| 2 | DuxTel |
| 1 | E-mail Scanner DK |
| 1 | E-mitic/Serveur |
| 2 | EASYHOST |
| 1 | ECAS |
| 1 | EGAT |
| 1 | EKERNEL SYSTEM by Angel |
| 1 | EL.DA Service srl |
| 2 | EM |
| 1 | EMAILDUIF, DUIF #1 |
| 1 | EMNordic |
| 1 | EMind/Fax-Server |
| 1 | ENIA Laboratorio |
| 1 | ETS/UFPB |
| 8 | EXT |
| 1 | Earth |
| 1 | Easyact |
| 1 | Easydata Consulting Mail Server |
| 1 | EatUp |
| 2 | Ebuntu |
| 1 | Educadium |
| 1 | Eelsi |
| 2 | Efuzja.pl |
| 1 | Eifel |
| 1 | Eifert Webdienste |
| 2 | Eikeo SAS |
| 1 | ElabNET |
| 1 | Elaion |
| 1 | Elitelabs |
| 2 | Elsynet s.r.l |
| 1 | Eltro |
| 1 | Eltro GmbH |
| 1 | Email ya'll! |
| 1 | EmailsByDesign |
| 1 | Emblica |
| 1 | Endian Mailserver |
| 3 | Engines |
| 1 | EnguityMailGW |
| 1 | Enisey-Servis |
| 1 | EpicMadness |
| 1 | Equestria Electronic Mail Servic |
| 1 | Ergil |
| 1 | Eric |
| 1 | ErmaGurd |
| 2 | Errors to: postmaster@whitebolt. |
| 2 | Estudio Sotomayor |
| 1 | Evalesc Mail Service |
| 11 | Exascale |
| 2 | Excalibur |
| 2 | Exchange |
| 1 | Exchange 1547 |
| 1 | Exherbo Linux |
| 1 | Express.com.ar |
| 1 | External |
| 1 | F.U.C.K.U.P. |
| 1 | F/OSS TEI of Western Greece |
| 1 | FAIL |
| 1 | FC24 |
| 1 | FDC Mail System |
| 1 | FDGueux |
| 1 | FEDORA |
| 1 | FH-D |
| 1 | FLA |
| 2 | FOG MAIL SERVER |
| 1 | FOLKS LMS |
| 2 | FRC-UTN |
| 6 | FRESH Newsletter |
| 1 | FUCK OFF |
| 1 | FUCK/GNU |
| 1 | FUCKYOUOS |
| 1 | FUG BR |
| 3 | FUN-SURF MEDIA - Email Server |
| 1 | Facetoe Empire |
| 1 | Falcones mail server |
| 2 | Fampkin_DNA_Postduif |
| 2 | Fast Linux |
| 2 | FastEnterprises |
| 2 | Fayrus |
| 1 | Fazzi |
| 17 | Fedora |
| 3 | Fedora 12 Linux |
| 1 | Fedora 21 |
| 1 | Fedora 8.0 |
| 1 | Fedora 999-666 |
| 1 | Fedora C4 |
| 2 | Fedora Core 7/GNU |
| 8 | Fedora/GNU |
| 1 | Fedora24 |
| 1 | FeelingDev Team |
| 1 | Fefze beetle infected |
| 2 | Ferret |
| 1 | FielMail |
| 1 | Filtosaur |
| 1 | Firestarter |
| 2 | FlyHeberg |
| 1 | Followize |
| 1 | Foo/BAROS |
| 1 | FooBar System |
| 1 | Footronic |
| 1 | For Authorized Use Only / All ac |
| 7 | Fordaq RO |
| 1 | Fortifix/GNU |
| 1 | Fot |
| 1 | Fox Internet e Telecomunicação |
| 1 | FoxCouncil EMAIL Services Yip/Ya |
| 1 | Foxlair |
| 1 | Fractus, S.A. |
| 1 | Fraggle/Rocks |
| 88 | FreeBSD |
| 1 | FreeBSD 10.1 |
| 1 | FreeBSD 8 |
| 1 | FreeBSD 8.0 |
| 1 | FreeBSD/9.2 |
| 4 | FreeBSD/GNU |
| 1 | FreeBSD/bakateam |
| 1 | FreeDOS |
| 2 | Freebsd |
| 1 | Freedom(tm |
| 3 | FrogLinux |
| 1 | Frontend Mail Service |
| 1 | Frontier MTA |
| 1 | Fuck you if you try something wr |
| 1 | FuckOff |
| 1 | Fuji was here |
| 1 | Fulcrum-BUILD |
| 1 | Fulcrum-RC |
| 1 | FunasaSaude |
| 1 | Fundsters Post |
| 1 | G-Lex |
| 1 | G.A.M.P. |
| 1 | GCPS/GNU |
| 1 | GDC |
| 1 | GENY Mail server |
| 1 | GET LOST |
| 1 | GFY |
| 4 | GIS/Sentinelle |
| 1 | GLC/Fax-Server |
| 1 | GLOBEWARE, s.r.o. |
| 1 | GN100.COM |
| 2 | GNOE/Oehoeroeboentoe 13.37 |
| 41 | GNU |
| 1 | GNU Linux |
| 1 | GNU Hurd |
| 2 | GNU Linux |
| 1 | GNU Terry Pratchett |
| 2 | GNU-Linux |
| 3 | GNU/Debian |
| 45 | GNU/Linux |
| 1 | GNU/Linux Jost |
| 2 | GNU/Mandriva |
| 2 | GNU/Penguin |
| 1 | GNU/Secure |
| 1 | GNU/Ubuntu |
| 1 | GNU\Linux |
| 1 | GOAWAY |
| 4 | GP/GNU |
| 1 | GRUPO-INT |
| 1 | GULCh |
| 1 | GXnetwork/LinuxGNU |
| 1 | GaP |
| 1 | Gadaud Family SMTP Server |
| 1 | Galapagos mail |
| 1 | GambitNashMail |
| 1 | Gameboy OS |
| 1 | GangstaMail v3 |
| 1 | Gary/GNU |
| 1 | Gateway |
| 3 | Geminit - GNU |
| 1 | Generic Linux |
| 19 | Gentoo |
| 1 | Gentoo GNU/Linux Hardened |
| 10 | Gentoo Linux |
| 1 | Gentoo Linux 2007 |
| 1 | Gentoo Linux/2.11.3 |
| 1 | Gentoo Linux/2.8.9 |
| 1 | Gentoo Linux/3.0.2 |
| 5 | Gentoo Linux/3.1.0 |
| 1 | Gentoo/Base 2.2 |
| 39 | Gentoo/GNU |
| 6 | Gentoo/Linux |
| 1 | Gentoo/MAIL |
| 1 | Geny Srl Mail Server |
| 1 | Gesa |
| 1 | Get fucked |
| 4 | Get your power back in your emai |
| 1 | GetHosted.pl |
| 1 | GfUD |
| 1 | Ghost |
| 1 | Gib mir deine Mails ich geb dir |
| 1 | GigiX |
| 1 | Giraud |
| 1 | GlobalChat |
| 1 | Go AWAY |
| 1 | Go SPAM yourself! |
| 1 | Goober the Singing Peanut |
| 1 | Gorilla |
| 1 | GospoGied |
| 3 | Gotanet mail server |
| 1 | Gotska |
| 1 | GovWiki |
| 1 | Govnet |
| 1 | Graha Mail System |
| 1 | GrantomeLinux |
| 1 | Green Elephant Edition |
| 1 | Greetings to you! |
| 1 | Greetings, spammers! |
| 2 | Groumph/GNU |
| 1 | Groupe Chaka Custom Mail System |
| 2 | Grupo Login International Mail S |
| 1 | GuckstDu |
| 1 | Gudntach |
| 2 | Guess what? |
| 1 | Gutalax |
| 4 | HAL9000 |
| 1 | HAM |
| 1 | HANYANG ZAS |
| 1 | HARTMANN |
| 1 | HAW Hof |
| 1 | HDCV |
| 2 | HELLO MY FRIEND |
| 1 | HGK |
| 1 | HNS |
| 1 | HP-UX |
| 1 | HP/UNIX |
| 2 | HPUX |
| 1 | HS Popmail |
| 2 | HT ITALIA/Fax-Server |
| 1 | HTCI Gateway |
| 1 | HUEMAE |
| 1 | HURD |
| 1 | HYPER-Server/Cool |
| 1 | HackBBS |
| 1 | Hackademy Nux |
| 2 | Hackersoft |
| 1 | Hai~! ^_^ |
| 1 | HallelYAH.com |
| 1 | HappyFoto |
| 1 | Hardcore |
| 4 | Harmonic Mix |
| 1 | Hasefroch |
| 1 | Hasemaus |
| 1 | Have a nice day. |
| 1 | HelenOS |
| 8 | Helios/AB-Com |
| 1 | Hello World |
| 1 | Hello/There |
| 1 | Helloooo |
| 1 | HelpDesk MailServer |
| 1 | Herber eDevelopment |
| 1 | Herve |
| 2 | Heureka |
| 1 | Hey World |
| 1 | Hey! |
| 3 | Hi! I am a smtpd banner virus. P |
| 1 | Hikaru/Tsubasa-4.1.7 |
| 11 | Hiltech |
| 1 | Hinttech Mail Relay |
| 1 | Hipatia_Debian/GNU |
| 1 | Hitaxi/GNU |
| 8 | Hoerbuntu |
| 1 | Home of the Club on Debian 8 |
| 1 | HonyPot |
| 3 | Horlemann - Abuse to peterss(at |
| 1 | Host at Ubuntu-Server |
| 1 | Host42 Mail Server |
| 1 | Host42 Mail Service |
| 2 | HostArt Emailer Service |
| 2 | HostName webhosting |
| 1 | Hosted by DylanGeenen.pro |
| 1 | Hostma webhosting |
| 1 | Hostname.cz webserver, Debian/GN |
| 1 | How may I help you? |
| 1 | Huebuntu |
| 1 | Huhu/GNU |
| 1 | Hullway |
| 1 | Hurd/GNU |
| 9 | Hurricane MailGunner Service |
| 21 | Hurricane Mailgunner |
| 1 | Huxton |
| 19 | Hyware EZ Server |
| 3 | I EATZ SPAMZ |
| 1 | I do the funky chicken, yeah! |
| 1 | I like you! |
| 1 | I'm so ninja |
| 1 | IAXAR Telefonia |
| 1 | IBM RS/6000 |
| 1 | IBM Z-Series |
| 1 | IBR, TU Braunschweig, Germany |
| 2 | IDC |
| 1 | IFS Flensburg |
| 1 | IFUEL GMBH MX |
| 3 | IGC |
| 1 | ILA |
| 1 | ILDNB/GNU |
| 1 | IM WATCHIN U |
| 1 | IMC |
| 7 | IMIO |
| 1 | IMVE |
| 7 | INBOUND |
| 1 | INBOUND SMTP SERVER |
| 1 | INDISCLOUD |
| 1 | INEX - www.inex.ie |
| 1 | INFOMAIL |
| 1 | ING MAIL SERVER |
| 3 | INS Server |
| 1 | INTERSPEEDYIA |
| 1 | INTERSPEEDYIA GIBERTONI |
| 1 | INTERSPEEDYIA.FELAP |
| 1 | INTERSPEEDYIA.PUBLISHER |
| 1 | IPIN.COM |
| 2 | IPv6 enabled |
| 1 | IRIS |
| 1 | IRIX/Oxygen |
| 2 | ISBANK |
| 1 | ISERMATIC SYSTEM by Angel |
| 2 | IT Experts SMTP |
| 4 | ITC server |
| 1 | ITM Systems GmbH |
| 1 | ITmatic |
| 2 | ITnT MailServer |
| 1 | IUT.FR |
| 1 | Ia! Ia! |
| 1 | IamWhaIam |
| 1 | IdeaSMTP |
| 1 | Ideo Point Com |
| 1 | If you are not supposed to be he |
| 1 | Iglesia Maradoniana |
| 10 | Ignoble SecureMail v.3.14159 |
| 3 | ImmoSky AG Switzerland |
| 1 | Incoming muffins? 6_9 |
| 1 | IndiaHosting.co |
| 1 | Induxion |
| 1 | Inevio |
| 13 | InfoToyota |
| 11 | Infoclinicainformatica.com.br |
| 2 | Inforuptcy |
| 1 | Inmogerencia |
| 1 | Innet/Fax-Server |
| 1 | Inovandoweb |
| 2 | IntelliCloud AS01 |
| 1 | Intelligence |
| 8 | Intelly tecnologia e serviços |
| 1 | Internet Media Holding |
| 1 | Interplanet/Fax-Server |
| 1 | IntranetWifi/Fax-Server |
| 2 | Ionic Business Systems Limited |
| 4 | Irix |
| 2 | Irix 6.5.11051214 IP32 |
| 6 | Irpinia Net-Com Mail server |
| 3 | Irpinianet-com/Fax-Server |
| 1 | Is-Fun 187 |
| 1 | Is-Fun 188 |
| 1 | Ischia.info,ischia.com.de |
| 1 | It's a Huge Station |
| 1 | It's not magic, it's mailbending |
| 2 | Izhprest MailServer |
| 1 | JAGUAR |
| 1 | JASL |
| 1 | JJHosting Mail Server |
| 1 | JM Data |
| 1 | JSS-GRP.CO.JP |
| 1 | JSS-NET.NE.JP |
| 1 | Jaaco Server |
| 1 | Jalan Buntu |
| 1 | Jan Onufry Zagloba |
| 1 | Jet Aero Fuels MX |
| 1 | Jo servus ... |
| 1 | Joes's Mailserver |
| 3 | Join The World www.jtw.cz |
| 1 | Jonix/GNU |
| 1 | JustAnotherLinuxDistribution |
| 1 | Juvente |
| 1 | KAM |
| 1 | KELTRON Mail Server |
| 1 | KITE |
| 1 | KN Serv |
| 2 | KNF |
| 1 | Kamyu.Net |
| 1 | Kanfansel |
| 1 | Karlchen |
| 2 | Kartel |
| 1 | Kazoo System |
| 7 | KeY |
| 1 | Keagster |
| 1 | KeepOut! |
| 2 | Keine Werbung und Prospekte bitt |
| 1 | Keysource Mail eXchanger 02 |
| 1 | Kick your teeth in |
| 1 | Kill/All/Humans |
| 1 | Killchange/GNU |
| 1 | KillerBEE |
| 40 | Kiwix |
| 1 | KlemensMail |
| 3 | Klet Observatory Network |
| 1 | Klingon Mail Gateway 2000 |
| 2 | Klondike |
| 2 | KoKKoLy!!! |
| 1 | Koeppert Design |
| 1 | Kolibri |
| 1 | Kolumbs secondary MX |
| 4 | Konica Minolta |
| 1 | Korvstump |
| 1 | KotaoDev |
| 1 | Kpsa Clinical Adminisrator |
| 1 | Kronos MIS |
| 1 | Kryptonite |
| 1 | Kubuntu |
| 1 | KungFuOs |
| 1 | KvFG |
| 1 | L3Tech |
| 2 | L: AangetekendMailen |
| 1 | LCHost HVM Platform 213.230.208. |
| 1 | LFIT.CO.KR |
| 1 | LHQMailServer |
| 4 | LINUX |
| 1 | LION |
| 1 | LJet-vx/48 |
| 1 | LJet-vx/ubxr |
| 2 | LM |
| 2 | LM Networks Srl |
| 1 | LNX |
| 3 | LOCO NT |
| 1 | LOGIN |
| 1 | LSAN |
| 1 | LSD |
| 1 | LTD |
| 6 | LUNETA |
| 5 | LUXE |
| 1 | LVL3 |
| 2 | LXmail01 |
| 2 | LXmail02 |
| 2 | LXmail03 |
| 3 | LXmail04 |
| 2 | LZJTU |
| 1 | Labinsch IT |
| 1 | Land of Awesome |
| 1 | Latansa |
| 3 | Latinux |
| 1 | Lenny |
| 2 | Lesbian/GNU |
| 1 | Lezebre |
| 1 | LiNuXnXUXuXnuX |
| 1 | Liberty Damenmoden GmbH |
| 1 | Light Pananormal |
| 1 | LightServe |
| 2 | Lightbox Technologies |
| 1 | Lingewoud |
| 1 | LinuX |
| 1 | Linuks/GNU |
| 161 | Linux |
| 2 | Linux ...what else |
| 1 | Linux 0.8 |
| 2 | Linux 3 |
| 4 | Linux For Ever |
| 1 | Linux Gurus United |
| 1 | Linux for Human Being |
| 1 | Linux like |
| 2 | Linux x86_64 variant |
| 36 | Linux/GNU |
| 1 | Linux/SH |
| 2 | Linux/Ubuntu |
| 1 | LinuxMail |
| 2 | LinuxServer |
| 1 | LinuxTag |
| 1 | LittleServerUnderTheStairs |
| 1 | Livorno |
| 1 | LoPsT Mail Server |
| 1 | Lobustho Mailappliance |
| 1 | LocSol |
| 1 | Loesys |
| 2 | Loftmail |
| 1 | Logica Cloud |
| 1 | LomOsLinux |
| 1 | Long Now |
| 1 | Loonix |
| 1 | Lucas Systems Inc, Please send i |
| 1 | Luktsalt |
| 2 | Luna Node |
| 4 | Luneta |
| 1 | Luneta.sk |
| 2 | Lunix |
| 1 | M |
| 2 | M3d.es |
| 1 | MACOSX |
| 1 | MAIL PYRESCOM |
| 3 | MAIL SRV |
| 1 | MBox |
| 1 | MELONITE UK LTD |
| 1 | MEMSET |
| 1 | MEd3 |
| 1 | MEs3 |
| 1 | MGM |
| 1 | MOMIT |
| 3 | MOVSET s.r.o. |
| 1 | MP |
| 1 | MPPL-POP3/IMAP Server |
| 1 | MPSNA powered |
| 7 | MS EXCHANGE |
| 1 | MS EXCHANGE 2010 |
| 1 | MS-DOS 3.20 |
| 4 | MS-DOS 6.22 |
| 1 | MS-DOS ver.6.22 |
| 1 | MSA - Padova |
| 1 | MSMARTU |
| 22 | MTA |
| 1 | MTA1 |
| 1 | MTGI |
| 1 | MULTITECNOLOGY |
| 1 | MULinux |
| 1 | MVA-connect/Fax-Server |
| 1 | MVS 5 |
| 1 | MX |
| 3 | MX TwooIT |
| 1 | MX de gudule.org |
| 3 | MXLN |
| 16 | MXSEC/MXFRONT-END |
| 1 | MZ/x |
| 1 | Mac OS X |
| 1 | MacOSX |
| 4 | MacroLan |
| 5 | Made to Order Software Corporati |
| 2 | Mageia Linux |
| 1 | MagicBrain-Linux |
| 3 | Mail |
| 1 | Mail ISP Network |
| 6 | Mail Server |
| 1 | Mail System |
| 1 | Mail server |
| 2 | Mail server 0.0.1 |
| 1 | Mail-SRV |
| 1 | Mail/Server |
| 3 | Mail2 Server by PcCentro Informa |
| 2 | MailServer |
| 1 | MailServer MN |
| 7 | MailService |
| 1 | Maileon |
| 2 | Mailfilter |
| 1 | Mails EEDF Midipy |
| 2 | Mailscanner |
| 1 | Mailserver by BR Taxi Team Ltd. |
| 1 | Mailzones E-Mail Cluster |
| 1 | Main |
| 1 | Maison de la Communication |
| 3 | MakinaStates |
| 1 | Malicious access attempts will b |
| 1 | Mandriva |
| 1 | Mandriva Business Server |
| 1 | Mandriva Linux |
| 17 | Mandriva MES5 |
| 8 | Marox |
| 1 | Martinet BIZ server |
| 6 | MarvelServ|MailService |
| 1 | Mas Alojamientos |
| 1 | Matware Linux |
| 1 | May the force be with you |
| 1 | MdbS system |
| 1 | MediaflowPro |
| 2 | MediagrafSPA - Padova |
| 1 | Mediakonsten |
| 1 | Medialogic Mail Server |
| 1 | Medianet Mail |
| 2 | Meditrans |
| 1 | MeetingTool/MailerDaemon |
| 1 | MegaLinux |
| 1 | MegaMarketing |
| 3 | MegaSystem/GNU |
| 10 | Megahost by Tartel |
| 1 | MertyboxMail |
| 1 | Mes couilles sur ton front |
| 1 | Michels Mailserver |
| 20 | Microsoft Exchange |
| 3 | Microsoft Mail |
| 1 | Microsoft Windows 2K8 R2 |
| 1 | Microsoft Windows 3.11 for Workg |
| 1 | Microsoft Windows ME |
| 6 | Microsoft/XP |
| 3 | Microtechno |
| 2 | Mighty Postfix-o-Mat |
| 1 | Mindtrick Mail |
| 1 | Mindworks |
| 1 | Minibian |
| 1 | Ministry of Information and Comm |
| 2 | Ministry of Truth |
| 1 | Mint |
| 1 | Miranda Kerr |
| 1 | Mishino |
| 1 | Mithral Consulting |
| 2 | Mlt |
| 1 | MoR/GNU |
| 1 | MoXx |
| 1 | Mokelpower! |
| 1 | Mono Informatica |
| 1 | MoofMail |
| 1 | Muehlemann & Popp Online Media A |
| 1 | Multics |
| 1 | Multinet Corporate SMTP Server- |
| 1 | Multiplay UK ltd |
| 1 | Municipality Of Athens |
| 1 | MyMail |
| 8 | Mysterious Gate |
| 1 | NAVIS |
| 75 | NBS-System |
| 1 | NDK |
| 1 | NE.COM |
| 1 | NEMSIS Technologies GmbH & CoKG |
| 9 | NETBOSS |
| 2 | NETIPAMAIL |
| 1 | NFC |
| 1 | NGI |
| 4 | NIPOTECH |
| 2 | NIPOTECH SMTP |
| 1 | NIX |
| 1 | NM-Mailer-0 |
| 1 | NM-Mailer-4 |
| 1 | NO SPAM PLEASE |
| 1 | NO UBE / UCE |
| 6 | NO UCE |
| 2 | NO UCE, NO UBE |
| 1 | NO UCE/UBE |
| 1 | NONAME |
| 2 | NSCL/MAIL |
| 1 | NTU Mail Server |
| 3 | NWX Debian/GNU |
| 1 | NaruSaku is the only pairing |
| 1 | Naruto is the coolest ninja |
| 13 | Nasdaq |
| 1 | Nat-Tech Consulting |
| 1 | National Research Institute of A |
| 1 | Navi OS |
| 3 | Navigator |
| 1 | Navilo mail |
| 1 | Nea Backup MX |
| 1 | NeptuneLabs Ticket System |
| 1 | Net And Gate |
| 1 | Net4all |
| 8 | NetBSD |
| 1 | NetBSD 1.6.2 |
| 1 | NetOrbitMX/Debian/GNU |
| 2 | Netbeat |
| 1 | Nethouse |
| 2 | Netusers.cz |
| 1 | Netvoice/Server |
| 1 | Neuroexe |
| 1 | NewConsulting/GNU |
| 1 | Newnet Unix Mail Server |
| 1 | Newsman.ro ESP |
| 1 | Nexus |
| 1 | NiX |
| 2 | Nice |
| 1 | NihonUX/5 "Konnichiwa" |
| 1 | Ninja |
| 1 | Niramar Mail Service |
| 1 | Nitrogen |
| 1 | NixOS |
| 3 | No UBE/UCE please |
| 2 | No UBE/UCE please! SPF enabled |
| 1 | No UBE/UCE/Spam please! |
| 1 | No UCE |
| 1 | No UCE/UBE |
| 1 | No seas malo...o lo sabré |
| 1 | No snooping please |
| 1 | NoReply |
| 1 | NoSkillBrain |
| 1 | NoTaG Base |
| 1 | NoTaG Host |
| 1 | NoVersionSpecified |
| 1 | NodeUnit |
| 1 | NodoCoop |
| 2 | Nohowe Limited |
| 1 | Nomesoft Studios |
| 1 | None of your biz |
| 2 | Noneofyourbusiness |
| 1 | Noodlesticks |
| 1 | Not Unix |
| 5 | NotFound Digital Creativity |
| 1 | Nothing |
| 1 | Nothing to see here |
| 1 | Notice: Relaying prohibited. Un |
| 1 | Nova |
| 1 | Novatel // mailhosting |
| 1 | Novem-IT |
| 2 | Novicus Systems Suppliers of har |
| 1 | Novonet |
| 1 | Noxether |
| 1 | Nubienv |
| 1 | Numerex Zabbix |
| 1 | O2O |
| 1 | OBERHOLSTER NETWORKS |
| 1 | OCExclusive Group |
| 1 | ODIN-WEB-PLATFORM |
| 1 | ODLX@Debian/GNU |
| 1 | OHAI |
| 2 | OMDC.pl |
| 1 | OMN |
| 1 | OMPH_MAHAKALA108 |
| 1 | OMRGlobus |
| 1 | ONHB Mail Server |
| 1 | ONLINE |
| 1 | OS |
| 1 | OS X Server 10.8 |
| 6 | OS/2 |
| 1 | OS/2 Blackmamba-Edition |
| 4 | OS/2 Warp |
| 1 | OS/2 Warp 4 |
| 1 | OS/2 Wrap-Edition |
| 2 | OS/2 v1.0 |
| 3 | OS/9 |
| 1 | OSF/1 Release 1.0 |
| 1 | OSM |
| 2 | OUSMAN/GNU |
| 4 | OUTBOUND |
| 1 | Obri/GNU |
| 1 | Oehoeroeboentoe |
| 1 | OlliTal |
| 1 | Omnijax |
| 1 | Omniwise |
| 12 | On-Demand-Server |
| 1 | Only HAM |
| 1 | Onthanet-PRIMARY-Mail-Server |
| 1 | Onthanet-SECONDAIRY-Mail-Server |
| 1 | Open Source Solutions Ltd. |
| 1 | OpenBIZ 3.0 |
| 15 | OpenBSD |
| 2 | OpenBSD 5.5 |
| 6 | OpenBSD 5.8 |
| 1 | OpenBSD/2.8-20100323 |
| 1 | OpenBSD/GNU |
| 1 | OpenBSD/REZ |
| 2 | OpenSUSE |
| 5 | OpenSolaris |
| 1 | OpenSuSE 11.3 |
| 1 | OpenSuse/GNU |
| 6 | OpenVMS |
| 1 | OpenVMS Galaxy |
| 1 | OpenVMS V7.3-1 |
| 1 | Openminds SMTP policier |
| 1 | Opzoon |
| 1 | Oro-Net/Fax-Server |
| 1 | OskolTelekom email service |
| 1 | Osmotion hosted mail servces |
| 1 | Ovca mail |
| 1 | Override |
| 5 | P.P.F.NetworK.P.P.F |
| 1 | PANDALOVE |
| 1 | PBX.Center |
| 1 | PHP-Friends.de |
| 1 | PIG |
| 1 | PKF Slovensko |
| 1 | PLANCK |
| 1 | PLUGH |
| 1 | POCZTA UG |
| 1 | POL-MOTORS Sp. z o.o. |
| 1 | POSTDUIF2 |
| 2 | POSTFIX |
| 2 | PS5 Internet |
| 1 | PT |
| 2 | PT Multi Bina Pura International |
| 1 | PT. Zamasco |
| 1 | PU5H |
| 1 | PaScience Labs Mail Service |
| 1 | Pacis Insurance Co Ltd |
| 1 | Packet Loss s.r.l. |
| 1 | PalmOS |
| 2 | Pandora |
| 1 | Pass for Banner Grabbing (OutOfT |
| 1 | Pato |
| 1 | Pegasus |
| 5 | PerFact 2012 |
| 4 | PerFact 2013 |
| 5 | PerFact 2015 |
| 9 | PerFact Mail 2016 |
| 1 | PerFact/Debian/GNU |
| 2 | PerFact/Ubuntu |
| 1 | Perz |
| 1 | Pesca Deportiva |
| 1 | PeterM |
| 1 | PiWi |
| 1 | Pico |
| 3 | Pigeon-fed Mail Server |
| 1 | Piratenpartei Deutschland Landes |
| 1 | Pitko's mail server |
| 1 | Pivic Data |
| 8 | Pixid |
| 1 | Plan 9 from Bell Labs |
| 3 | Plan9 |
| 1 | Playlist |
| 1 | Please dont send me spam! |
| 1 | Pleksus |
| 1 | PoP-MG |
| 1 | Poczta-MaDoNET |
| 1 | PokiService |
| 2 | Politechnika Swietokrzyska w Kie |
| 1 | PonnyFuckServer |
| 2 | PopTek.cn Powered |
| 1 | PopTek.net Powered |
| 1 | Porcheron AU |
| 2 | Porcheron UK |
| 7 | PortUNA Debian/GNU variant |
| 1 | PortalProgramas |
| 1 | Positrax All Terrain Mail |
| 1 | Post Server |
| 1 | PostOffice |
| 5 | Postfix |
| 1 | Postfix AEC vMail |
| 1 | Postfix FTW! |
| 1 | Postfix RULES! |
| 4 | Postfix Rules! |
| 2 | Postfix Rulez! |
| 1 | Postfix on ToS /|\TARI 8ooXL |
| 3 | Postfix-19991231-pl08 |
| 1 | Postfix-20010228-pl01 |
| 1 | Postfix-20010228-pl05 |
| 2 | Postfix-20010228-pl08 |
| 1 | Posthuset.nu |
| 1 | Postikana |
| 1 | Powell Labs |
| 1 | Powered by C Studio |
| 1 | Powered by Linux OS |
| 1 | Powered by Mass-Associates.CoM - |
| 2 | Powered by Nekhem |
| 2 | Powered by Spark::Red, http://sp |
| 24 | Powered by Spark::red, http://sp |
| 4 | Powermailer |
| 2 | Precious Metal |
| 1 | Presentation Management Systems |
| 1 | Preved |
| 1 | Preved Medved |
| 1 | PriBTM114 |
| 1 | PrimaSMTP |
| 1 | Private |
| 1 | ProPhotoBG Newsletter |
| 1 | Proburo |
| 3 | Proglayer DA |
| 1 | Prognum Informatica |
| 6 | Progress |
| 3 | Progress Linux |
| 1 | Progweb Technologies |
| 1 | ProjectIron |
| 1 | Prokuratura |
| 2 | ProtHosting.com |
| 1 | Provided by Net Enterprises Ltd |
| 1 | Proxion |
| 1 | Proxion IT |
| 1 | Proxmox Mail Server |
| 2 | Puppet/SYN |
| 1 | QIXIS |
| 16 | QNET |
| 10 | QNX |
| 1 | QQ Immobiliare |
| 1 | Qbox |
| 1 | Qbuntu |
| 1 | Qonnect-IT |
| 1 | Quatsch! |
| 1 | R-LabsLinux |
| 1 | RACK66 Modified Debian/GNU |
| 1 | REKLAME |
| 1 | RGD.GOV.JM |
| 3 | RHEL |
| 4 | RHEL 5.3 |
| 1 | RHEL 6 |
| 1 | RHEL/GNU |
| 1 | RHEL6 |
| 2 | RHEL6.4 |
| 2 | RHL 4.0 |
| 1 | RMD/Mail |
| 1 | ROILCOM |
| 1 | ROLACODE |
| 8 | ROSA RES6 |
| 1 | ROTARY1840.ORG |
| 1 | RSA MailServer |
| 1 | RSHK |
| 1 | RSquare Antispam solution |
| 1 | RTK |
| 12 | RTMEDIA |
| 5 | Rack66 Mail Cluster |
| 1 | Rack66 Secondary Mail Cluster |
| 1 | Radio Wroclaw |
| 2 | Radioactive Virtualized Zombie M |
| 1 | Ransona Ltd. |
| 554 | Raspbian |
| 1 | Ray.Net |
| 1 | Ready to Roll |
| 2 | Real Garments Ltd |
| 1 | Red Dwarf |
| 1 | Red Hill |
| 1 | RedAccenir |
| 1 | RedHat |
| 1 | RedHat EL7 s390x |
| 7 | RedHat/GNU |
| 1 | RedHat/Linux |
| 1 | RedLook CZ s.r.o. |
| 2 | Redeparede |
| 3 | Redhat |
| 1 | Redhat Enterprise Linux |
| 1 | Redhat/Enterprise |
| 1 | Redsauce |
| 5 | Reeds Lodge |
| 1 | ReisWilhelm |
| 2 | Relay |
| 1 | Release-20010228 |
| 1 | Remeks Serviss |
| 1 | ResolC |
| 1 | Rheinweb Backup MailSystem |
| 4 | Rheinweb MailSystem |
| 1 | Rhino Enterprises |
| 1 | RightClick |
| 3 | RightVision GmbH |
| 1 | Ringelpiez |
| 4 | RioMail |
| 1 | Roam |
| 1 | Rob Madden |
| 1 | RobTheCat |
| 2 | Roba Da Donne |
| 1 | Rocket Service |
| 1 | Rommel, you magnificent bastard! |
| 1 | Rootor |
| 1 | Rootspirit |
| 1 | Roy_Testing Mailserver |
| 2 | Rufus by Beagle |
| 1 | Rulez |
| 2 | Russia |
| 1 | SABANERO mail server |
| 4 | SACT |
| 2 | SANJOSECOOP |
| 1 | SASL |
| 1 | SASL TLS |
| 1 | SAT-MAIL |
| 1 | SB |
| 2 | SBS Net |
| 1 | SCO SystemV/386 R3.2 |
| 1 | SCS-Indonesia |
| 1 | SDATA Tecnologia |
| 1 | SECURED |
| 1 | SEGSAT |
| 1 | SEHR DE |
| 1 | SERVER |
| 1 | SERVER.GL |
| 1 | SERVIDOR DE CORREOS |
| 1 | SETI Institute |
| 1 | SElinux |
| 3 | SFGW-B19WLL |
| 1 | SIMETRI |
| 1 | SIP-Online |
| 1 | SIPATO |
| 1 | SIS-NETWORK |
| 3 | SIVIT |
| 1 | SKAY/Gentoo |
| 1 | SKC IT Service GmbH |
| 1 | SLES |
| 1 | SLS |
| 1 | SM |
| 73 | SMTP PROXY |
| 1 | SMTP 2.11.3 |
| 1 | SMTP ACTOLL |
| 5 | SMTP AUTH for XSALTO Customers |
| 1 | SMTP Admin : sysadmin@loxinfo.co |
| 1 | SMTP IP for XSALTO customers |
| 2 | SMTP PROXY |
| 1 | SMTP Ville Echirolles |
| 2 | SMTP1 |
| 1 | SMTP2 |
| 1 | SOC |
| 5 | SOZ |
| 1 | SOZ4 |
| 1 | SOz |
| 2 | SPAM/AV - Express.com.ar |
| 3 | SPARCed |
| 1 | SPC |
| 2 | SRN Hosting |
| 1 | SS9 |
| 1 | ST |
| 1 | STEFY |
| 2 | STG - EXT |
| 1 | STOLL Mail Appliance |
| 1 | STRUCTUM-TECHNOLOGIE JUTRA DZISI |
| 1 | STSIPA-EPC |
| 2 | STsoft::cortiz@stsoft.pe |
| 2 | SUDEBAN |
| 1 | SUN Solaris |
| 1 | SUN/Solaris |
| 1 | SUSE |
| 1 | SV8 - Cybersaladelle - Universur |
| 2 | SWFMAIL-SWATTER |
| 1 | SWIFT |
| 2 | SZIT |
| 1 | Sacrificio |
| 13 | SafeWall24 |
| 1 | Saju John/GNU |
| 1 | Salim Elakoui |
| 5 | Saluda ENIA Cienfuegos |
| 2 | Saluda ENIA Direccion General |
| 1 | Saluda ENIA UIC Villa Clara |
| 1 | Saluda Univ. Matanzas |
| 1 | Salve |
| 1 | Sam! :D |
| 1 | Samsung Galaxy |
| 1 | Sanctuary |
| 52 | Say "Hello Gall" |
| 1 | Schouderadvies |
| 3 | SchulePLUS |
| 1 | Scideralle/GNU |
| 1 | Scratch/GNU |
| 2 | Seal One AG |
| 1 | SecMails System |
| 1 | Secure Mail Hub |
| 2 | Secured Server: We block/report |
| 1 | Securedrop |
| 1 | Security AG |
| 1 | Securwave.com |
| 2 | Sedna |
| 1 | SegaMegaDrive2 |
| 1 | SegoenOS |
| 1 | Selo |
| 1 | Sender |
| 1 | Serenix/GNU |
| 1 | Servage Hosting |
| 7 | Server |
| 1 | Server de E-mail Siat |
| 1 | ServerStore |
| 1 | Serveur SMTP de aeriades.org |
| 1 | Serveur SMTP de cini.fr |
| 1 | Serveur SMTP de unik-edition.fr |
| 1 | Serveur de Messagerie de l'Assoc |
| 46 | Servi-O-matic.com running on Deb |
| 1 | ServizioInformaticaMX10 |
| 1 | ServizioInformaticaMX20 |
| 1 | Setcor |
| 1 | Setel |
| 2 | SetelMTA |
| 3 | Seval/Linux |
| 1 | Shake it, baby! |
| 1 | Shark |
| 1 | Shazbot industries |
| 1 | Shut up, Rory |
| 1 | Shyan Server |
| 1 | SiamData SMTP Gateway |
| 1 | SiamE project |
| 1 | Siliconcoach mail2.siliconcoach. |
| 1 | Simon |
| 7 | SimpleRezo |
| 1 | Sinclair ZX81 |
| 1 | Sirius Cybernetics Corporation |
| 1 | Siveo Business Server |
| 1 | SkylarNET |
| 3 | SkylarNET No Nonsense |
| 1 | Skynet |
| 5 | Slackware |
| 1 | Slackware Linux |
| 7 | Slackware forever |
| 1 | Slackware-X64 |
| 6 | Slackware/GNU |
| 1 | Slackware/GNU Linux |
| 1 | Slackware/GNU/Linux |
| 1 | Slackware/RRR |
| 1 | Slackwarw/Unix |
| 1 | Small Organizaton |
| 1 | Small Presence |
| 1 | Smartbox Oficial email |
| 1 | SmurphTools |
| 26 | SnapServ SMTP Relay |
| 1 | Snapshot-20001217 |
| 1 | Snarfing QuoiQuoi 1.0 |
| 1 | SnickSnack Server |
| 1 | Software Libre para Una Cultura |
| 1 | Solar |
| 13 | Solaris |
| 1 | Solaris 5.8 |
| 1 | Solaris/GNU |
| 1 | Solaris/Spark |
| 1 | Sollertis Mail-system |
| 4 | Solo MX Reales |
| 1 | Some Linux Box |
| 2 | Some Linux distro, dno which exa |
| 1 | Some Random NIX |
| 9 | Some SMTPd on yet another *nix v |
| 3 | Some Secure Mailer |
| 1 | Some Server |
| 1 | Some operation system - who care |
| 1 | Some/GNU |
| 3 | SonyPSP/GNU |
| 1 | Sopa Software |
| 1 | Sotiri/server |
| 1 | Sounder |
| 1 | SpadHausen/Fax-Server |
| 2 | Spam Free |
| 1 | Spam? No Thanks |
| 1 | SpamBit.net |
| 1 | SpamCan |
| 1 | SpamSnake |
| 1 | Spammers will be handed over to |
| 1 | Sparhost Mailsystem |
| 3 | Sparta |
| 1 | SportsManagementSystems |
| 2 | Stadt Geestland |
| 1 | StarFleet Exchange |
| 1 | StarFleet MailServer Engine |
| 3 | StarSystem |
| 1 | Starprice Mailserver |
| 2 | Statvaccuort' |
| 1 | StealthSystems |
| 2 | Stefy |
| 2 | StefySMTP CRM-MKT |
| 1 | Stella Artois |
| 1 | Stigmail Secure |
| 1 | StreamSide |
| 1 | Studio Overfence Original SMTP |
| 1 | Studio Schiaffino - GENOVA |
| 1 | StudioMilk |
| 2 | SuSE |
| 1 | SuSe Linux Enterprise Server |
| 1 | Sucka |
| 3 | Sun Solaris |
| 2 | SunOS |
| 2 | SunOS 4.1.4 |
| 1 | SunOS 5.8 |
| 1 | Sunquest Pharmaceuticals, Inc. |
| 1 | Super Puper Linux |
| 1 | SuperMail |
| 1 | Support |
| 1 | Support Inis System |
| 1 | Sure you need to see this? |
| 1 | Suse |
| 1 | Suspero |
| 1 | Swifty Mailer |
| 1 | Synandri - NEBULA |
| 1 | Syntares |
| 1 | SysFix Europe |
| 1 | Sysosmaster.Web |
| 1 | System |
| 2 | TAGADAB |
| 1 | TC4U Internet Services |
| 1 | TEC NETWORK |
| 1 | TED Mail server-A |
| 1 | TED Mail server-B |
| 1 | TEDS-IT |
| 1 | TELMA GLOBAL NET |
| 1 | TFL ltd MTA |
| 1 | THE THING |
| 1 | TI-86 |
| 2 | TLS on |
| 1 | TLS only |
| 1 | TMS Group |
| 1 | TOBBES |
| 1 | TRASTA |
| 1 | TRS-DOS |
| 1 | TRoD |
| 1 | TURCOM |
| 1 | TUX |
| 1 | TUXbuntu |
| 1 | TVLP |
| 1 | TWEB |
| 1 | Talk To Me |
| 1 | Tally-ho! |
| 1 | TamaG |
| 1 | Tandy UNIX - Tandy TRS-80 Model |
| 1 | Tanglu |
| 1 | Tanktrouble |
| 1 | Taomee Company |
| 1 | Tastytronix/H1M0M |
| 1 | Tawanrung Trans |
| 1 | TbD |
| 2 | Tech Digital/Fax-Server |
| 1 | Tech-oh-no Flattr |
| 1 | Tech/No |
| 1 | TechSYS-smtp.techsys.ch |
| 2 | Technatron |
| 1 | TechnicLab |
| 1 | TeletubbyOS |
| 1 | Terabyte |
| 1 | Terranova S.r.l. |
| 2 | ThFree Co |
| 1 | The FFPC |
| 1 | The PostgreSQL company |
| 1 | The funky chicken |
| 1 | The postman always rings twice |
| 1 | There is no cake |
| 1 | There is nothing better than 127 |
| 40 | Third Eye Consulting |
| 1 | Thunderbox Debian/GNU |
| 2 | TicketGang |
| 1 | Tiketti |
| 1 | Till |
| 1 | Times Computers MTA |
| 1 | TimmyMail |
| 14 | Tomcom GmbH |
| 1 | Tommahs jwz |
| 4 | Tracciabi.li/SMTP |
| 1 | Trader Invest AB |
| 1 | TreeX |
| 3 | Treen Technology |
| 3 | Trinity |
| 2 | Trinity Community Arts |
| 1 | Trisquel |
| 1 | Trollfjord |
| 1 | Trollz0r |
| 1 | TropWeb SYSTEM |
| 1 | TrueOS |
| 1 | TrunkBird.com |
| 43 | Trustix |
| 1 | Tux |
| 3 | U |
| 3 | U : |
| 4 | UBUNTU |
| 1 | UBUNTU/GNU |
| 1 | UBi/Fax-Server |
| 2 | UCE use forbidden |
| 1 | UCMAIL v1.5 |
| 1 | UCW |
| 1 | UIT |
| 1 | UKY Computer Science |
| 1 | UNICON.UZ |
| 7 | UNIX |
| 1 | UNIX v7 SOYUZ |
| 1 | UOS/GNU |
| 1 | UVT |
| 1 | Uber |
| 362456 | Ubuntu |
| 1 | Ubuntu - Jool ERP |
| 1 | Ubuntu - LSIS |
| 2 | Ubuntu - NMNGT |
| 2 | Ubuntu - Qenner |
| 1 | Ubuntu 1.1 |
| 2 | Ubuntu 10.04 |
| 1 | Ubuntu 12.04 |
| 3 | Ubuntu 14.04 |
| 1 | Ubuntu 14.04.1 LTS |
| 1 | Ubuntu 16.04 |
| 1 | Ubuntu Development |
| 1 | Ubuntu FM |
| 3 | Ubuntu GNU/Linux |
| 1 | Ubuntu GreyHound edition |
| 2 | Ubuntu LTS 12.04 by redeslinux.n |
| 1 | Ubuntu LTS 16.04 by redeslinux.n |
| 2 | Ubuntu Linux |
| 1 | Ubuntu Mail Server STG Boiler PL |
| 7 | Ubuntu Server |
| 1 | Ubuntu Zero |
| 2 | Ubuntu chez AZERTY Microsystem |
| 1 | Ubuntu cym001 |
| 1 | Ubuntu feat. Gerard MAMOU |
| 1 | Ubuntu mailserver |
| 1 | Ubuntu on SiriusTelecom |
| 1 | Ubuntu phuGAMA |
| 1 | Ubuntu postfix |
| 1 | Ubuntu postfix2 |
| 2 | Ubuntu v8.4 |
| 1 | Ubuntu, rxon.hu |
| 1 | Ubuntu-Lategan & Bouwer Engineer |
| 1 | Ubuntu-SPAM ME!, I dare you |
| 5 | Ubuntu-Ubetcha |
| 1 | Ubuntu-nixsus |
| 1 | Ubuntu/8.10 |
| 1 | Ubuntu/Autoland |
| 4 | Ubuntu/Debian |
| 159 | Ubuntu/GNU |
| 1 | Ubuntu1x |
| 2 | UbuntuOS!-SPAM ME!, I dare you |
| 1 | Ubuntu_wii |
| 1 | Ubuntuch |
| 1 | Ubuntuu |
| 1 | Ubunut |
| 1 | Ubzuntu |
| 1 | Ultrarad448 |
| 2 | Ultrix |
| 2 | Umbongo |
| 1 | UnBit SMTP node1 |
| 1 | Unauthorized Access Prohibited |
| 4 | Unauthorized use prohibited |
| 8 | Unbit |
| 1 | Undermail |
| 2 | Undisclosed version |
| 1 | Unifox-Mailserver Debian/GNU |
| 1 | Universidad Nacional de la Patag |
| 26 | Unix |
| 1 | Unix system |
| 2 | Unix/Linux |
| 1 | Unix/Martinique |
| 1 | Unknown |
| 1 | Unspecific |
| 1 | Ural-Net |
| 1 | Ux |
| 1 | VACAbuntu |
| 1 | VAX - the banner that sucks |
| 2 | VECC |
| 1 | VIA/Gentoo |
| 1 | VISIONWORK MAILSERVER |
| 1 | VMHive Inc |
| 1 | VNet systems |
| 1 | VRCraft WM |
| 1 | VSO |
| 1 | VTFFf |
| 3 | Vade Mail System |
| 1 | ValeoHost |
| 1 | Vandenweyer Nick |
| 3 | VarDump S.r.l |
| 1 | Vensair |
| 1 | VentureVoIP/Mail |
| 1 | Venus www.venus.co.uk |
| 1 | Verrate ich nicht :- |
| 1 | Version 2.9.6 |
| 1 | Videnov Mail |
| 1 | Virus and Spam Gateway |
| 1 | Visual Link |
| 1 | Vitael S.A. |
| 1 | Voyager |
| 1 | WALS mail server |
| 1 | WCB Sistemas |
| 1 | WEBtic |
| 1 | WFG |
| 1 | WIN |
| 1 | WINDOWS |
| 1 | WINDOWS SERVER 2008 |
| 1 | WIRENET - ISP |
| 1 | WIS |
| 1 | WMATERA/Gentoo |
| 4 | WML-tls-sasl-sauth-lvt-ccert-vsc |
| 1 | WNX |
| 1 | WRB Postfix 4/2004 |
| 1 | WSBiP |
| 1 | WTF |
| 1 | WTF! |
| 1 | WTF/GNU |
| 2 | WarHammer |
| 2 | Warrnet/Gentoo Linux |
| 1 | WarungWeb.NET |
| 1 | Wat bist du?! |
| 1 | We deliver all spam to /dev/null |
| 1 | WeKloud, look up! |
| 2 | Web Hosting Server |
| 1 | Web365 |
| 1 | WebA |
| 57 | WebHat/Rulez |
| 1 | WebOS v5.1 |
| 1 | Webdivision MAIL Services |
| 1 | WedigoLinux |
| 133 | Wekloud, look up! |
| 2 | Welcome |
| 1 | Welcome to Mokelbu.de Hosting |
| 1 | Welcome to Nuclear Magnetic mail |
| 1 | Welcome to ewi |
| 3 | Wellcom Serwer |
| 2 | Western Academy of Beijing - All |
| 1 | Westino GmbH |
| 2 | What else? |
| 1 | What up Big Worm? |
| 1 | What's a Shuttle Worth? |
| 1 | WhatBox |
| 1 | Whats up doc? |
| 1 | WheeBase |
| 1 | WhoKnows |
| 1 | Who_Cares_? |
| 2 | WiG s.r.o. |
| 16 | WideXS |
| 1 | Willow |
| 1 | Win2012R2 |
| 1 | Win2k |
| 1 | Win32 |
| 1 | Win95 |
| 1 | Win95 SE |
| 1 | Window 3.1 |
| 15 | Windows |
| 1 | Windows 2.0 |
| 1 | Windows 2000 |
| 1 | Windows 2003 |
| 1 | Windows 2008 |
| 1 | Windows 2008 Server |
| 1 | Windows 2008 Server R2 SP2 |
| 1 | Windows 2012 R2 |
| 1 | Windows 2012R2 |
| 1 | Windows 3.1 |
| 7 | Windows 3.11 |
| 1 | Windows 3.11 for Workgroups |
| 1 | Windows 8.1 |
| 1 | Windows 95 |
| 3 | Windows 98 |
| 1 | Windows 98 Me |
| 1 | Windows Mobile 6.5.3 |
| 1 | Windows NT 5.1 |
| 1 | Windows Server 2003 |
| 2 | Windows Server 2008 |
| 1 | Windows Server 2008 R2 |
| 1 | Windows Server 2012 R2 |
| 3 | Windows XP |
| 1 | Windows XP SP1 |
| 4 | Windows for Workgroups 3.11 |
| 10 | Windows/GNU |
| 5 | Windows/IIS7 |
| 1 | Windows2008 |
| 16 | Windows2008R2 |
| 8 | Windows3.1 |
| 1 | Windows8 |
| 1 | Windows95 |
| 1 | WindowsXP |
| 2 | Wirehive Mail Relay |
| 2 | Wish I were on a beach |
| 1 | Wish You Were Here |
| 1 | WnetSoft |
| 1 | Wodalux Customer Mailgateway |
| 1 | Would you like some Aioli sauce |
| 1 | Wrath Designs WHQ |
| 1 | Wurstwasser |
| 5 | X Procure |
| 1 | X-TECH |
| 1 | XENOTEK |
| 1 | XLABS release 23 |
| 1 | XMailer |
| 1 | XMedia Creation |
| 1 | XOOM |
| 1 | XServ |
| 2 | XUbuntu |
| 1 | XXXxx Mail Exchange xxXXX |
| 1 | Xanod/FRS |
| 1 | Xenix |
| 1 | Xenix/AIPC |
| 1 | Xenosite |
| 1 | Xiantasoft |
| 3 | Xivo GmbH |
| 1 | XtalBlueOS |
| 1 | Xtheta |
| 1 | Xulu system ltd |
| 1 | YMMV 1.1 |
| 2 | YO MAMA SO FAT, WHEN SHE WEARS A |
| 1 | YONIX.SK |
| 2 | YUPN |
| 1 | Yamama |
| 1 | Yeah right... |
| 1 | YoMama |
| 1 | You're not sending spam, right? |
| 1 | YourMomSaysHi |
| 1 | Youre/Welcome |
| 1 | YovesXTitski |
| 1 | Z |
| 1 | ZDROWNICA |
| 1 | ZS Cerekvice nad Bystrici |
| 1 | ZX Spectrum |
| 1 | ZX Spectrum Terminal x9000/GNU / |
| 1 | ZX spectrum |
| 2 | ZXSPECTRUM |
| 1 | ZXSpectrum 48k |
| 1 | Zandoo |
| 1 | Zed Alpha Special |
| 3 | Zenimel 3.0 |
| 2 | ZenterSystem |
| 1 | ZorpOS |
| 1 | Zubizarreta Consulting |
| 7 | Zulip Voyager |
| 1 | Zvidris |
| 1 | a Wisaforce Company |
| 1 | acp1 |
| 1 | adcoprodmailing |
| 2 | admin |
| 1 | ae-mail |
| 1 | afaxys-survey.com |
| 1 | ahill |
| 1 | alien |
| 3 | all access will be logged |
| 1 | alvi |
| 1 | angelr.com |
| 12 | ant |
| 3 | app21.nl |
| 1 | ara |
| 1 | area31 |
| 1 | arghh.org |
| 1 | assistent-it.ru and ITFortis.ru |
| 1 | astreix.vorax.sk |
| 1 | at your service |
| 2 | atnd GmbH |
| 1 | avmx |
| 1 | bacanol corporation inc secure m |
| 1 | be kind to the house elves |
| 1 | beaufort10 via aluminium |
| 1 | beaufort3 via aluminium |
| 1 | beaufort3 via hindmost |
| 1 | beaufort4 via hindmost |
| 1 | belle34.de |
| 8 | bender.abteam.si |
| 1 | beware of sales ferengis |
| 1 | beyond |
| 1 | bgbonn.papaya-server.com |
| 1 | biddlu |
| 1 | bienvenue chez COYNE et BELLIER |
| 1 | bienvenue chez facility |
| 1 | bikeonet |
| 1 | birnensoft |
| 1 | bleu255.com |
| 2 | bondav |
| 5 | boo-box |
| 1 | br0kend |
| 1 | bsd |
| 1 | bsmtp1 |
| 3 | business use only |
| 2 | buzz/off |
| 3 | by @rmani |
| 2 | by Escogita |
| 1 | by Mauro |
| 1 | by Rauan / Debian |
| 1 | by Zhout LLC |
| 2 | by astro |
| 14 | by roms |
| 1 | c64-Its really fast |
| 1 | calexio.nl |
| 1 | campamedia Mail Service |
| 1 | careful, caffee is hot |
| 1 | carrapato mail |
| 1 | cc-mailserver |
| 1 | chapi |
| 1 | chapo |
| 1 | chl - Debian/GNU |
| 1 | chunky-monkey |
| 1 | circe V5 |
| 2 | cluster node1 |
| 3 | cluster node5 |
| 1 | cluster node6 |
| 2 | cluster.com |
| 1 | colornet-emailserver-2 |
| 2 | condition NORMAL |
| 1 | config by Truelite Srl |
| 1 | connections are logged, abuse wi |
| 1 | cooked and Hardened |
| 1 | core90.serversystem mx1-in |
| 1 | core90.serversystem mx1-out |
| 2 | core90.serversystem svcb1 |
| 1 | creativteam |
| 5 | cust |
| 1 | custom |
| 4 | customized |
| 1 | d. |
| 1 | dNet |
| 1 | daniel-jh.com Mail Server |
| 1 | dataline |
| 1 | dayanisma |
| 13 | debian |
| 1 | debian 8 |
| 1 | debian/GNU |
| 1 | declan |
| 1 | deloros.biz |
| 1 | deltacorp-paintball |
| 1 | dev |
| 1 | diavida.com |
| 3 | djh-compnet Mail Server |
| 1 | don't be mean |
| 1 | don't fuck with the admins they |
| 1 | doo mer heanig an |
| 1 | dorvack |
| 1 | dupont7 via boeing |
| 1 | e-Branding UNIX Server |
| 1 | e-respons |
| 1 | eSiggi |
| 1 | eVIRTUAL |
| 1 | earwig-2/GNU |
| 1 | easy-business.org |
| 1 | ec2-54-171-68-61.eu-west-1.compu |
| 1 | eec.mail1 |
| 19 | eedomus |
| 2 | energobelarus.by |
| 1 | entree SCOUT |
| 1 | epaper.ncu.edu.tw |
| 2 | etraining |
| 1 | exchange 3.7.69 |
| 1 | exo-mailserver |
| 3 | exsys Communication Server |
| 1 | extols.co.uk mail server |
| 1 | fartbuntu |
| 1 | fax24 |
| 1 | fayrus |
| 1 | fbnet Mail Server |
| 1 | fedora |
| 2 | feed me |
| 1 | filter1.hewstone.it filter2.hews |
| 1 | flash.rainbow-house.com.tw |
| 1 | follow the white rabbit |
| 1 | for teh future |
| 1 | forits |
| 1 | foundation.nucastle.co.uk |
| 1 | fuck off |
| 1 | gaia |
| 1 | gas |
| 1 | gateway - R3 - www.netgine.net |
| 1 | gateway - R4 - www.netgine.net |
| 1 | gateway - R5 - www.netgine.net |
| 1 | gbd-online.de |
| 2 | gcyfy.com |
| 1 | giles |
| 1 | go away |
| 1 | grsec |
| 1 | gs u1 |
| 1 | guess |
| 3 | gw-smtp |
| 2 | gw-smtp-out |
| 1 | ha-ha |
| 1 | hack |
| 1 | hackAday |
| 1 | halelandsurvey.us |
| 1 | hallertau.net internal mail serv |
| 1 | happy |
| 1 | hello baluba |
| 1 | hello dere |
| 1 | hello leat supar hacksaws |
| 1 | hey |
| 1 | hi |
| 1 | honeynet project |
| 1 | hp-ux |
| 1 | http://opensolaris.com |
| 3 | http://rentalia.com |
| 1 | http://soysuper.com |
| 1 | http://www.flashnet.at |
| 1 | http://www.pincom.net/policy.htm |
| 1 | hue |
| 1 | i <3 kageshi |
| 1 | i-nex setup |
| 1 | i-nex spam protect setup |
| 3 | i-nex spam protected setup |
| 1 | iCore Systems |
| 1 | iMail |
| 1 | iShopService.nl |
| 1 | iTSupport |
| 4 | ia64 Debian/GNU |
| 1 | ib |
| 1 | iceflame |
| 1 | idallen@idallen.ca |
| 3 | idunn.de |
| 9 | ieatghosts |
| 1 | ikar-us |
| 1 | im the best Ubuntu!! |
| 3 | in |
| 1 | in London |
| 3 | inVivo |
| 1 | incotelsas/2015 |
| 1 | inet4all GmbH |
| 1 | infermieredomiciliareroma.com |
| 1 | infinite_snacks |
| 1 | info |
| 1 | informedia smtp server |
| 1 | infra-smtp.multi.net.pk - SPAM E |
| 1 | inquiries to: postmaster |
| 5 | interscholz Internet Services |
| 4 | isp.net-tech |
| 1 | iversenit.dk |
| 1 | j |
| 1 | j1 |
| 1 | jb |
| 1 | joco |
| 2 | juhuu |
| 1 | julianhsieh |
| 1 | kepler.daallexx.eu |
| 1 | kimsufi.com |
| 1 | kix |
| 1 | klms u2 |
| 1 | knobelbecher.net/works |
| 2 | let's hear what you have to say |
| 1 | lhr-smtp.multi.net.pk - SPAM Ema |
| 1 | libastral/0.5 |
| 1 | lilith |
| 1 | linearclipping |
| 1 | linum |
| 32 | linux |
| 1 | local mailhub |
| 1 | lol |
| 1 | lol at you! |
| 3 | lolwut |
| 1 | lumennet.es |
| 1 | lunch v3 |
| 1 | lunch v4 |
| 1 | lustprinzip.com |
| 1 | m2c |
| 1 | magenting made easy |
| 9 | mail |
| 1 | mail I1 |
| 1 | mail for improv people |
| 1 | mail.alexdpsg.net |
| 1 | mail.baltimex.net |
| 1 | mail.cp-bonn.de |
| 1 | mail.fastformer.net |
| 1 | mail.glaciers.de |
| 2 | mail.iserver.ro |
| 1 | mail.nwohiobb.com |
| 1 | mail.optimumtechnology.com.au |
| 1 | mail.satip-tv.com |
| 1 | mail.vistcom.ru |
| 1 | mail.wnsi.co.uk |
| 4 | mail1 vps |
| 1 | mail1.tks-net.de |
| 5 | mail2 vps |
| 1 | mail4.hsti.de |
| 2 | mailhost.net.nz |
| 1 | mailin02 |
| 1 | mailserver |
| 261 | main |
| 3 | mandriva/GNU |
| 35 | mantissystems.com |
| 1 | melio34.ru |
| 1 | messagerie |
| 2 | miyw-hosting |
| 1 | mjung.net |
| 1 | mk |
| 1 | mnr |
| 1 | moi! |
| 1 | mokha Inc. |
| 1 | movi.tech |
| 1 | mrkeks |
| 1 | ms-dos 6.22 |
| 1 | msa2 |
| 1 | msdos |
| 1 | msvr01.mail4us.net |
| 2 | msvr03.myroundcube.com |
| 1 | mtaControl |
| 1 | mtmetaltrade |
| 1 | musich.eu |
| 2 | mx |
| 1 | mx-1 |
| 1 | mx-2 |
| 1 | mx-3 |
| 2 | mx-4 |
| 2 | mx-rz-3 |
| 2 | mx.vlgmail.ru |
| 1 | mx01.email-servers.de |
| 2 | mx1 |
| 1 | mx2.vlgmail.ru |
| 1 | mxvp-user-al-t-3789 |
| 2 | mybroo! |
| 1 | myftp.org |
| 1 | na |
| 1 | nao tem versao |
| 1 | nardus.net |
| 1 | nase |
| 5 | net-lab superserver cluster |
| 1 | netclueOS |
| 1 | networkgateway.org |
| 1 | neutron.servernetwork.at |
| 1 | new |
| 4 | no sales calls, no collect calls |
| 18 | no spam please |
| 2 | no spam plz kthxbai |
| 2 | no system name |
| 2 | no version BSD rulez! |
| 20 | no version info |
| 1 | node 1 |
| 1 | node9.org |
| 1 | nodo1 |
| 2 | nonofyourbusiness |
| 2 | nonsuch |
| 1 | noreply |
| 1 | nowin |
| 1 | ns.trustview.com.tw |
| 1 | ns0 V1 |
| 1 | ns1.creuna.dk |
| 1 | obenknux |
| 2 | oink |
| 1 | omegaproxy mailv1 |
| 1 | on Ubuntu Server |
| 1 | onecanine |
| 4 | openSUSE |
| 2 | openSUSE GNU/Linux |
| 1 | openSUSE/GNU |
| 3 | openSuSE |
| 1 | openagora S.A. |
| 1 | openbsd |
| 1 | openimp |
| 1 | oranged.to |
| 1 | osk01 |
| 1 | ovh |
| 1 | pc-30 |
| 1 | pc-pitstop.com |
| 3 | pcube internet services |
| 2 | pef.ph running Debian/GNU |
| 1 | pesol |
| 118 | phpnet.org VDS |
| 1 | phuart.pl |
| 1 | pi |
| 1 | picox mailCluster v3.17 |
| 1 | pii3 |
| 1 | pissoff |
| 1 | pixelbar |
| 1 | plms |
| 1 | pmar s.r.o. |
| 1 | pns/GNU |
| 1 | post |
| 1 | posta.cine-max.sk |
| 1 | posta.my-home.sk |
| 1 | posta.ticketware.eu |
| 1 | posta.userbin.sk |
| 3 | postex |
| 2 | postfix |
| 6 | postfix-2.10.0 |
| 1 | postfix-2.2.11 |
| 6 | postfix-2.2.3 |
| 1 | postfix-2.2.9 |
| 5 | postfix-2.4.5 |
| 5 | postfix-2.5.1 |
| 1 | postfix-2.8.1 |
| 15 | postfix-2.8.4 |
| 6 | postfix-2.8.7 |
| 12 | postfix-2.9.1 |
| 12 | postfix-2.9.15 |
| 5 | postfix-2.9.6 |
| 2 | postfix2 |
| 1 | postiin |
| 1 | postmaster |
| 1 | potestas |
| 3 | powered by Conference |
| 1 | powered by Debian |
| 1 | powered by NAVITAS Solutions Gmb |
| 1 | powered by Ubuntu |
| 3 | powered by a honey badger - watc |
| 1 | powered by pmar s.r.o. |
| 1 | powered by tlcweb.net |
| 3 | preventgroup.com |
| 2 | private mailer |
| 1 | prod48.hosts.butterfly.com.au |
| 1 | propme |
| 1 | pruebas finales |
| 4 | qbox smtp-auth |
| 1 | qmail sucks |
| 1 | qop.io |
| 1 | quantensturm.de |
| 1 | raspbian/GNU |
| 1 | reactor networks email services |
| 1 | redacted |
| 1 | relay2 |
| 2 | relaying disable |
| 8 | relaying disabled |
| 1 | repozitorOS |
| 2 | reverse.completel.net |
| 1 | ridhamilwan gansila |
| 1 | royalserver |
| 1 | rt-11sj |
| 2 | rubyBawx CentOS6 |
| 2 | ruris.ruris.ro |
| 3 | sWssW |
| 1 | sagen wir nicht |
| 1 | samsebesadovod.ru |
| 1 | sarki3 |
| 1 | screeny |
| 1 | seitenbackwerk |
| 1 | send.leader-id.ru |
| 1 | send.president-sovet.ru |
| 1 | send.runet-id.com |
| 1 | sendmail |
| 1 | server |
| 4 | server-fw |
| 1 | server-fw-2 |
| 9 | server-om |
| 1 | server1 |
| 2 | setup by mglushak |
| 1 | silegio OS |
| 1 | slow-mo |
| 1 | smtp relay |
| 1 | smtp server |
| 1 | smtp-bcp-01.caltech.edu |
| 1 | smtp.apps.multi.net.pk - SPAM Em |
| 1 | smtp.fortesreport.com.br |
| 2 | smtp.multi.net.pk - SPAM Email s |
| 1 | smtp.nuzzar.com.ar |
| 1 | smtp02.caltech.edu |
| 1 | smtp1 |
| 1 | snathan |
| 1 | snip |
| 1 | sodapop |
| 1 | solar |
| 1 | som |
| 12 | some Unix |
| 1 | some server |
| 1 | spammers will be reported to the |
| 1 | spammers will be shot on sight! |
| 1 | spamming forbidden |
| 1 | spamming is not allowed |
| 1 | spicythaipeanut/GNU |
| 2 | spojag015sv |
| 1 | sputnik |
| 1 | sre |
| 3 | storiaccia |
| 1 | sun |
| 1 | superbash |
| 1 | support.comter.cz |
| 1 | system.cinemaware.eu |
| 2 | tenbrinke.net |
| 2 | test |
| 1 | test.siards.lv |
| 1 | thelabs.pl |
| 1 | third eYe consulting |
| 1 | tiananmen,Falun Gong,Cultural Re |
| 1 | toekieweb |
| 1 | tristateflight.com |
| 1 | trust0 |
| 2 | tsxp mail services ready |
| 1 | tubuntu |
| 1 | tuxian |
| 1 | twilken.de |
| 1 | uAnywhere UBOX |
| 1 | ubrainy.com |
| 12 | ubuntu |
| 1 | ubuntu 12.04 LTS |
| 1 | ubuntu rocks |
| 2 | ubuntu/GNU |
| 2 | unauthorized use strictly forbid |
| 8 | unix |
| 8 | unknown |
| 1 | unkonw |
| 1 | unx |
| 2 | upg |
| 1 | ups.. |
| 1 | v9.02x |
| 1 | vBox |
| 1 | variohost24.net |
| 1 | vbru.cz Network |
| 1 | venom GL.pl |
| 1 | ver.unknown |
| 1 | version unknown |
| 1 | vhinux |
| 1 | via |
| 1 | virtcons |
| 9 | virus checking |
| 1 | vs241026 |
| 1 | vx1 |
| 1 | vz1 |
| 1 | vz2 |
| 1 | w247.cz |
| 1 | waits for applause |
| 1 | we dont like spam and mondays, t |
| 1 | we:pixel GmbH |
| 2 | web4foehr |
| 1 | webroot03.siards.lv |
| 2 | whateveruwant |
| 2 | whitelamp.com |
| 1 | whooptie doo, does anyone even r |
| 1 | whydoyoureadthis |
| 1 | win |
| 1 | windows |
| 1 | windows 3.11 |
| 1 | write me now |
| 1 | wuf! |
| 1 | wut? dat! |
| 1 | ww |
| 1 | www.PubliHost.com |
| 2 | www.ddnss.de |
| 1 | www.levelezesunk.info |
| 2 | www.quuxlabs.com |
| 4 | x |
| 1 | xshoot.net |
| 1 | your mom |
| 1 | yulan-rattan |
| 3 | zPk |
| 2 | zdfsecMail |
| 1 | zetan |
| 1 | બેશરમ! |
| 972906 | unknown |
| 1638052 | TOTAL |