automated SMTP server survey 19990117
5120 servers queried in the last 30 days
2731 53.33 Sendmail
352 6.87 MS Exchange
203 3.96 qmail
171 3.33 unknown
129 2.51 Netscape Mail server
118 2.30 Lotus
88 1.71 Post.Office
85 1.66 NT Mail
83 1.62 Smail
77 1.50 Exim
75 1.46 IMail
67 1.30 ZMailer
63 1.23 Mercury
61 1.19 CheckPoint FireWall-1
57 1.11 Raptor Firewall
51 0.99 Mercur
43 0.83 PP
40 0.78 AltaVista Firewall
38 0.74 GroupWise
36 0.70 EMWACS IMS
32 0.62 Eudora/AIMS/Mailshare
32 0.62 MS SMTP Mail
32 0.62 unknown (SMTP Rec.)
28 0.54 Intermail
28 0.54 MailSite SMTP Receiver
20 0.39 InterScan VirusWall
20 0.39 PMDF
18 0.35 Integralis SMTP Receiver
18 0.35 Mail.Hub TurboSendmail
18 0.35 MDaemon
17 0.33 InterLock
16 0.31 SLMail
15 0.29 unknown (mailcity?)
14 0.27 NPlex
14 0.27 Rocketmail
13 0.25 Mail-Max
13 0.25 MX
13 0.25 Obtuse wrapper
12 0.23 SMTP/cmap
11 0.21 MMDF
9 0.17 SMTP-GW
8 0.15 AltaVista Mail
8 0.15 FirstClass
8 0.15 MMTA
8 0.15 Postfix
8 0.15 Worldmail
7 0.13 David PostMan
7 0.13 Stalker
6 0.11 IBM VM SMTP
6 0.11 MailShield
6 0.11 Sun
5 0.09 Connect2-SMTP
5 0.09 GMX (qmail?)
5 0.09 Quickmail
5 0.09 Worldgroup
4 0.07 Kryptowall
4 0.07 UCX
3 0.05 ccMail
3 0.05 Hawkeye SMTP
3 0.05 IMA SMTP
3 0.05 LSMTP
3 0.05 TFS
3 0.05 VOPMail
2 0.03 Apple Internet Mail Server
2 0.03 AppleShare
2 0.03 Charon
2 0.03 Cyberguard or so
2 0.03 Mail.Link
2 0.03 Rapidsite
2 0.03 Soft-Switch LMS
2 0.03 Tid InfoMail
2 0.03 USA.NET
2 0.03 Viking
2 0.03 WebShield
1 0.01 Black Hole
1 0.01 DSMTP
1 0.01 Fwmail
1 0.01 Hummingbird SMTPD
1 0.01 IBM MVS SMTP
1 0.01 IMA ESMTP
1 0.01 Interchange
1 0.01 IPAD
1 0.01 iSMTP
1 0.01 MailBeamer
1 0.01 Mailmonster
1 0.01 mirabilis pager?
1 0.01 MultiBase
1 0.01 NASTA Gate SMTP Server
1 0.01 PowerWeb
1 0.01 SMTP-OpenVMS
1 0.01 Sonicmail
1 0.01 TGV/CISCO-MultiNet
1 0.01 usmtpd