| Count | MTA |
|---|---|
| 15224 | Exim |
| 14916 | unknown |
| 12974 | MailEnable |
| 7955 | postfix |
| 3559 | qmail |
| 3487 | blocked |
| 2404 | MS Exchange |
| 1334 | IceWarp |
| 592 | sendmail |
| 477 | rblsmtpd |
| 343 | eSafe |
| 190 | hmailserver |
| 163 | Cisco |
| 135 | mdaemon |
| 64 | TrendMicro Reputation |
| 60 | Kerio |
| 57 | merak |
| 32 | CCProxy |
| 32 | Lotus Domino |
| 17 | qpsmtpd |
| 17 | james |
| 15 | barracuda |
| 8 | PowerMTA |
| 8 | communigate |
| 8 | imail |
| 6 | MailSite |
| 5 | EMailArchitect |
| 5 | XMail |
| 4 | Argosoft NT |
| 4 | Mailtraq |
| 3 | Symantec AVGate |
| 3 | Code-Crafters |
| 3 | SonicWALL |
| 3 | SurgeSMTP |
| 3 | XWall/Exchange |
| 2 | WinWebMail |
| 2 | stalker |
| 2 | modusMail |
| 2 | CMailServer |
| 1 | mailmarshal |
| 1 | Sophos |
| 1 | CheckPoint FW |
| 1 | MailMax |
| 1 | spamsniper |
| 1 | Mercury |
| 1 | InterScan |
| 64125 | TOTAL |