>I've been running this version for IMail for over year now without this
>problem occuring until a couple days ago. I have SMTP AUTH set (using
>relay for addresses). Every few minutes, IMail stops accepting any
>authentications for SMTP. If i stop and restart the SMTP service, it
>works fine for another few minutes. Looking in the logs, I noticed a
>large amount of emails from a particular address, so I blocked their
>IP. This address no longer shows up in my log, but I'm still experiencing
>the SMTP problem. I read something about version 6.0 being susceptible to
>a DoS attack. Does this also affect 5.09? Also, what should I be looking
>for in the logs to troubleshoot this problem?
I don�t you�ll find the logs will give you any help here, although you
should be able to see the failed SMTP processes.
>When this problem occurs the SMTP service shows in IMonitor to be up and
>running, but no SMTP AUTHs can be done. Any ideas are appreciated
check the KB, this is a way too FAQ, although I�m sure there is a sure-fire
answer.
SMTP processes can continuing running, but it appears that SMTPD AUTH is a
separate process and it alone can fail to respond. You can check this
yourself in your imail logs. The SMTPD AUTH process has a different PID.
Now, you have to distinguish between SMTPD AUTH process not working at all,
which block the parent SMPTD process, and a running SMTPD AUTH process that
always returns "AUTH failed".
Len
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