On Wed, Jan 17, 2001 at 08:57:49AM +0000, Mark Delany wrote:
> I've got a perl script (albeit crude and unsightly) which parses qmail
> logs to determine the distribution of MTAs based on the SMTP 250
> response.
One sample point. I just analyzes the last day of a large list (a
junky one):
47.8% of the target domains are running sendmail, but only 15.8% of
the messages were sent there. This is consistent with the suggestion
that sendmail may be installed on a lot of systems, but that it's not
necessarily installed on systems that handle a lot of mail.
What does it show? That making measurements to determine which MTA
"handles" how much email is hard. But we knew that already, right :>
By MTA Count Percent
PostOffice 1627 0.7%
hotmail 81604 35.6%
Exchange 61056 26.6%
Microsoft-SMTP 2612 1.1%
GroupWise 1133 0.5%
InterScan 81 0.0%
exim 4042 1.8%
Netscape-messaging 2703 1.2%
Mail-Max 37 0.0%
Postfix 2077 0.9%
Lotus_Domino 436 0.2%
Maillennium 216 0.1%
Obtuse 31 0.0%
Imail 1930 0.8%
Mercury 162 0.1%
sendmail 36176 15.8%
cmap 2207 1.0%
WindowsNT-SMTP 201 0.1%
mmdf 137 0.1%
InterMail 7877 3.4%
unknown 10423 4.5%
qmail 7709 3.4%
Eudora 1107 0.5%
Communigate-Pro 317 0.1%
usa.net 3441 1.5%
By Domain Count Percent
Communigate-Pro 103 0.5%
Eudora 527 2.6%
Exchange 1297 6.4%
GroupWise 508 2.5%
Imail 843 4.2%
InterMail 192 1.0%
InterScan 58 0.3%
Lotus_Domino 168 0.8%
Mail-Max 28 0.1%
Maillennium 8 0.0%
Mercury 121 0.6%
Microsoft-SMTP 105 0.5%
Netscape-messaging 238 1.2%
Obtuse 23 0.1%
PostOffice 486 2.4%
Postfix 458 2.3%
WindowsNT-SMTP 101 0.5%
cmap 292 1.4%
exim 1548 7.7%
hotmail 63 0.3%
mmdf 133 0.7%
qmail 1455 7.2%
sendmail 9632 47.8%
unknown 1747 8.7%
usa.net 7 0.0%
Regards.
