Eric "Shubes" wrote:
I'm trying to track down a problem with a high volume server and would
appreciate any insights.
To begin with, there was a networking problem which I know nothing
about that apparently started this whole ordeal. The network problem
is allegedly fixed, but the email problem persists.
The smtp log appears to be normal, except that there are no simscan
messages. A test email eventually bounced with "Sorry, I wasn't able
to establish an SMTP connection. (#4.4.1)". Something's misleading
though, as I saw the smtp session for this message in the log, and it
ended with status 0 (but no simscan record).
Guessing that simscan (or more likely something within it like SA or
clamav) was having a problem, I disabled simscan, and mail is flowing
once again.
Any ideas what might be the problem here?
Hey Eric. Any more details? Was anything changed prior to this? Is it
maybe failing while trying to DNS lookups for blacklists or URIBLs?
Maybe try shutting one of those off at a time to see if they're the
culprit or not?
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