speaking of my antivirus/antispam proxy, i recently (today) learned
that occasionally my customers are getting hit with a 'multiple
outbound mail' problem.
i gateway customer outbound mail through the AV/AS proxy. customer
reported this morning that he sent an approximately 5 megabyte
message out to a couple of dozen associates. he's been getting
complaints now that some have received the message six, seven, eight
times over. i checked the queue on the pop/imap/webmail server, and
there was his message. the logs have dozens of the error message, as
the server keeps trying to send the message which it apparently
thinks didn't go through.
deferral:
Connected_to_64.42.88.20_but_connection_died._Possible_duplicate!_(#4.4.2)/
i'd seen those errors before occasionally but had never given them a
whole lot of thought, as i never got any complaints from customers -
and i never experienced the multiple copy issue myself.
i'm a bit flummoxed, and not sure where to go from here. i've
temporarily directed mail outbound directly from the pop/imap/webmail
server, bypassing the AV/AS proxy, but i don't want to leave it like
that indefinitely. but i'm also not sure where to look to debug.
obviously, just the right circumstances would have to obtain for it
to happen again, which could potentially mean leaving the
qmail-scanner logging on indefinitely, which i don't relish.
anyone else experienced this? i'm *guessing* this is an interaction
with qmail-scanner, but i'm not saying that it *is* a problem with
qmail-scanner - it could be a problem with spamassassin or clamav. i
do note that even now, in /var/spool/qmailscan/working/new, that
customer's message is still there -
-rw------- 2 qscand qscand 5697781 Jun 23 22:20 pravda111959043368965799
-rw------- 2 qscand qscand 5697781 Jun 23 22:20 pravda111959043368965801
-rw------- 2 qscand qscand 5697781 Jun 23 22:20 pravda111959043368965802
-rw------- 2 qscand qscand 5697781 Jun 23 22:20 pravda111959043368965805
-rw------- 2 qscand qscand 5697781 Jun 23 22:20 pravda111959043368965806
-rw------- 2 qscand qscand 5697781 Jun 23 22:20 pravda111959043368965807
curious, to say the least. oh - i 'touched' the customers message in
the queue pop/imap/webmail server's queue so that it would 'age out'
right away, and stop the repeating deliveries.
thoughts?
Paul Theodoropoulos
http://www.anastrophe.com
http://www.smileglobal.com
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