Re: emails stuck in queues (inside our domain queues)



After more looking and trying to find the cause of the hung queues, I
did find the below on server that mailman runs. This is the mail.warn
log file. Looks like to me that Exchange is messing up the stmp
communication and the mailman server is dropping the connects as a bad
connection. I can not tell from the log file if the ??? are special
characters or what.

May 18 09:17:17 loki postfix/smtpd[6451]: warning: Illegal address
syntax from ctsadmin.graceland.edu[10.125.33.23] in MAIL command:
adamski@graceal??????????????????????????????mail
May 18 10:53:12 loki postfix/smtpd[6827]: warning: Illegal address
syntax from pyrrho.graceland.edu[10.125.3.20] in RCPT command:
todd-l@xxxxxxxxxxxx????????????????????????????????rcpt


Everything I have found to date is pointing to Exchange having a
problem properly doing the smtp communication. It looks like about 8
queues have emails in this 'stuck' mode. Two are inside out domain
(the 2 list server) and the rest are outside servers, which most seem
to be k12 schools.

On the W2k3 server where do I look to see what errors Exchange is
getting when it tries to smtp to our mailman list server? I've only
been able to find that there was an error and no more information is
available.

At this point any suggestions would be welcomed on how to resolve this
issue.

John

.



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