Some spam getting through for some odd reason

Kevin Spicer kevins at BMRB.CO.UK
Sun Jul 13 22:13:00 IST 2003

>On Sun, 2003-07-13 at 21:35, Damian Mendoza wrote:

>You are correct as it does not match. The spam check should be for
>[32466] I believe.

I'm not sure that we are clear whats going on.  I've split your supplied
log up to show the progress of the message incorrectly delivered
(h6A04Q9F032454) and ignoring the other correctly processed message
(h6A04Q9G032454)   (note the single character difference - G not F)

MESSAGE h6A04Q9F032454 (incorrectly delivered without scanning)

Jul  9 17:04:27 spamgate sendmail[32454]: h6A04Q9F032454:
from=<swims-blew at>, size=2207, class=0, nrcpts=1,
msgid=<2730416505.01380945810856 at>, proto=ESMTP, daemon=MTA, []

Jul  9 17:04:27 spamgate sendmail[32454]: h6A04Q9F032454:
to=<chuw at>, delay=00:00:00, mailer=esmtp, pri=30531,

Jul  9 17:04:31 spamgate MailScanner[26052]: Unscanned: Delivered 1

Jul  9 17:04:32 spamgate sendmail[32466]: h6A04Q9F032454:
to=<chuw at>, delay=00:00:05, xdelay=00:00:01,
mailer=esmtp, pri=120531, relay=[] [], dsn=2.0.0,
stat=Sent ( <2730416505.01380945810856 at> Queued mail for


There must be a reason why MS is ignoring these messages.  It looks like
the sender forged the server HELO to use a name in your domain (the name
and IP don't resolve to each other).  If you are whitelisting based on
domain, or have virus checking turned off for some mail (maybe
'outgoing'?) then this may explain the behaviour. Could you post your
various rulesets and the values for 'Virus Scanning' and 'Spam Checks'
from MailScanner.conf?

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