Hello
all,
I posted on this
topic back in late January to no resolution. After spending most all of
this weekend doing research, I still am at a total loss, but do have clues on
getting my problem resolved.
Just a brief
history. I currently use the DirectAdmin (www.directadmin.com) webhosting control
panel on my server. When this software was installed, it installs the Exim
MTA email server along with SpamAssassin. When I orginially setup the
server on Dec. 21, 2004, DirectAdmin installed Exim 4.24 & SpamAssassin
2.55. Everything worked pefectly. SpamAssassin would filter all the
emails accordingly with the tagged subjects coming in having been tagged by S.A.
after I set the predetermined threshold level.
However, after I
upgraded to Exim 4.60 & SpamAssassin 3.1.0 in December, I experienced major
major headaches of email just coming to a grinding halt. Out of the normal
50 emails I would get per every 8 hours, only 5-10 were sitting in my
inbox. MANY customers complained that they were not getting email, that
email others were sending to them was bouncing back back with 421 Undeliverable
errors.
I did research on
this and found that many others were having similiar errors. So this
weekend I decided to really sit down and detail what is happening. First,
I made sure my firewall was open to localhost traffic using TCP on S.A.s
standard port. Then I went back, completely removed Exim 4.60 and
reinstalled Exim 4.24. Likewise I also went and removed SpamAssassin 3.1.0
and reinstalled SpamAssassin 2.55. During this time, I did keep my current
exim.conf file.
Immediately upon the
reinstallation and starting the exim service and running spamd -d -c -m 5
commands, everything actually worked. The logs were showing emails were
getting delievered and completed as normal. Spam emails were getting
tagged. However, within 4 hours of reinstalling those software packages,
emails start getting frozen in the Exim queue. I just don't mean one or
two emails, I'm talking well over a hundred.
What I don't get is
the fact that these very same binaries worked PERFECTLY together last year and
the only thing I can say is that it's the exim.conf file. Everything else
was the same. This is becoming a huge headache for me with
customers. Many are complaining that there is little spam protection, then
on the flipside when I enable SA, their emails just don't arrive because they
get frozen away in the Exim queue. My best estimation is that something in
the latest exim.conf file is miscommunicating with SpamAssassin. Or
SpamAssassin doesn't know how to handle communication from Exim so it's either
taking too long to scan, or it's tossing the email back to Exim saying
undeliverable. Either way I need to get this resolved quickly before
mumbling customers start getting the idea of wanting money back. See below
for a copy of the header of a sample frozen email. Also I have my
exim.conf file handy for anyone who wants to see. Also the server load on
my system is non-existant. Normal load averages during the day are like
0.01 / 0.01 / 0.01.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: mleatherland@<domainremoved>.com local delivery failed The following text was generated during the delivery attempt: ------ mleatherland@<domainremoved>.com ------ An error was detected while processing a file of BSMTP input. The error message was: 421 SMTP incoming data timeout - message abandoned The SMTP transaction started in line 0. The error was detected in line 3. 0 previous messages were successfully processed. The rest of the batch was abandoned. 421 SMTP incoming data timeout - message abandoned Transaction started in line 0 Error detected in line 3
