Mail Server Survey April 2004  

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Method:

  • Scanning: Scanning is done on an IP basis, i.e., I do not scan domains/fully qualified domains (FQDN), but IP addresses. By doing so I avoid to scan the same IP address twice or more because of multiple domains that share the same IP address.
  • I try to focus on subnets of hosting companies that offer dedicated servers to their customers. Usually these dedicated servers come with only one IP address so the percentage of mail servers spreading across multiple IP addresses is low.
  • Results: I try to list the most popular mail servers in the results table. Other mail servers with a minor role are merged under "Unknown / Other". "Unknown / Other" also contains the mail servers that do not tell what software they are running. Thus, it is possible that (e.g.) a mail server running Postfix is listed under "Unknown / Other" because it does not tell that it is running Postfix.

Results:

Mail Server Country Quantity Percentage  
CMailServer All 18 0.00% Details
CommuniGate Pro All 510 0.12% Details
DynFX All 135 0.03% Details
Exim All 57,364 13.22% Details
GroupWise All 105 0.02% Details
IMail All 83,552 19.25% Details
InterScan All 97 0.02% Details
Kerio MailServer All 111 0.03% Details
Lotus Domino All 325 0.07% Details
MailEnable All 3,656 0.84% Details
MDaemon All 1,033 0.24% Details
Merak All 1,249 0.29% Details
MERCUR All 577 0.13% Details
Microsoft ESMTP MAIL Service All 103,660 23.89% Details
Microsoft Exchange All 291 0.07% Details
Netscape Messaging Server All 1 0.00% Details
NTMail All 255 0.06% Details
Postfix All 24,171 5.57% Details
QMail All 9 0.00% Details
Sendmail All 97,130 22.38% Details
WinRoute Pro All 8 0.00% Details
XMail All 429 0.10% Details
Unknown / Other All 59,255 13.66% Details
Total:   433,941 100.00%  

 

 

Links:

CMailServer: http://www.computalynx.net/
CommuniGate Pro: http://www.stalker.com/
DynFX: http://www.dynfx.de/
Exim: http://www.exim.org/
GroupWise: http://www.novell.com/
IMail: http://www.ipswitch.com/
InterScan: http://www.trendmicro.com/
Kerio MailServer: http://www.kerio.com/
Lotus Domino: http://www.lotus.com/
MailEnable: http://www.mailenable.com/
MDaemon: http://www.altn.com/
Merak: http://www.merakmailserver.com/
MERCUR: http://www.atrium-software.com/
Microsoft ESMTP MAIL Service: http://www.microsoft.com/
Microsoft Exchange: http://www.microsoft.com/
Netscape Messaging Server: http://wp.netscape.com/messaging/v3.5/
NTMail: http://www.ntmail.co.uk/
Postfix: http://www.postfix.org/
QMail: http://www.qmail.org/
Sendmail: http://www.sendmail.org/
WinRoute Pro: http://www.kerio.com/
XMail: http://www.xmailserver.org/

 

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