For the past one week, our Domino SMTP server kept having problems everyday where the mails got stuck in the "mail.box". It happened everyday at the middle of the night between 2 to 3 AM. When I checked the mailbox, it has errors prompting Symantec AntiVirus/Content Filtering scan pending.
After much monitoring, troubleshooting and isolation, I found that the problem is related to the latest definition updates from LiveUpdate where the system tried performing a scheduled LiveUpdate from the Symantec site (Oh... forgot to mention that the server is protected by Symantec Mail Security for Domino).
To resolve the issue, I upgraded the existing SMSDOM version to SMSDOM 7.5.8.
Because of the problems, I didn't have a good sleep for the last one week as I had to wake up early morning to restart the Domino (via VPN connection from home) so that the mails can be processed for delivery. Too bad, my boss wasn't aware of my little extra effort. Sigh!
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