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netstepinc
07-20-2007, 11:43 AM
An error occurred while sending mail. The mail server responded: Unexpected failure, please try later. Please check the message recipients and try again.

I was trying to implement spam blocker:
http://www.directadmin.com/forum/showthread.php?t=8116&page=2&highlight=421+SMTP+incoming+data+timeout
"SpamBlocker is built in to the official DA exim.conf release (although we will be issuing a new version with more features and a few discrepancies between the actual workings and the documentation cleaned up, by the end of the weekend).

It should be already installed, unless you've done something to remove it.

To implement it you just copy the names of the domains you want to use it from /etc/virtual/domains to /etc/virtual/use_rbl_domains. You don't even have to restart anything."
netstepinc
07-20-2007, 11:45 AM
I rebooted my server...didn't help.
I restarted Exim a few times...didn't help.
100's of email users can't send/receive.
Worst issue I've ever had.
netstepinc
07-20-2007, 11:56 AM
http://www.directadmin.com/forum/showthread.php?t=17316&highlight=use_rbl_domains

# cd /etc/virtual
# rm -f use_rbl_domains
# touch use_rbl_domains
# chown mail:mail use_rbl-domains
netstepinc
07-20-2007, 12:21 PM
# cd /etc/virtual
# rm -f use_rbl_domains
# touch use_rbl_domains
# chown root:mail use_rbl-domains

Still having 421 errors.
mjk
07-20-2007, 01:07 PM
Some suggestions (not a exim guru)

Check the permissions on the configuration files and make sure they have the right ownership.

Make sure the log and spool directories are writable by the exim user.

What does /var/log/exim/paniclog say?

Is your exim config correct? There is a switch to check this (exim.org should tell you)
netstepinc
07-20-2007, 01:31 PM
Thank you. I was able to fix with the file ownership changed to mail.

I'm still up to my neck in
"421 SMTP incoming data timeout - message abandoned"

Apparently the issue is a function of SpamAssassin.
Now I'm trying to figure out SpamBlocker.

It's just a bit stressful because I'm not a server guru.
Every change I cross my fingers and hope I haven't wrecked something.