| Count | MTA |
|---|---|
| 1117 | postfix |
| 773 | Exim |
| 409 | sendmail |
| 296 | blocked |
| 185 | MS Exchange |
| 181 | unknown |
| 65 | Cisco |
| 38 | qpsmtpd |
| 12 | eSafe |
| 11 | barracuda |
| 9 | Kerio |
| 8 | MailEnable |
| 8 | Lotus Domino |
| 7 | mdaemon |
| 5 | TrendMicro Reputation |
| 3 | qmail |
| 2 | Scalix |
| 2 | IceWarp |
| 2 | SonicWALL |
| 2 | Mercury |
| 2 | rblsmtpd |
| 1 | assp |
| 1 | spamsniper |
| 1 | XMail |
| 1 | InterScan |
| 1 | SurgeSMTP |
| 1 | Winmail |
| 3143 | TOTAL |