OS: Windows/Linux; IceWarp Server Version: 11/10
If you have problems with SMTP sessions staying open too long, hanging your server, then follow those instructions:
Enable mail queue logging via command line Linux : sh tool.sh modify system C_System_Log_MailQueue 1 Windows : tool.exe modify system C_System_Log_MailQueue 1
It will start logging the processing logs in Icewarp\logs\queue\date.log file. Then you can find out at which stage of processing the session is locked. The logs look like:
SYSTEM [165C] 11:36:48 Message JOO40048 127.0.0.1 SYSTEM [165C] 11:36:48 Size filters end [00] SYSTEM [165C] 11:36:48 Antivirus begin SYSTEM [165C] 11:36:51 Antivirus end [00] SYSTEM [165C] 11:36:51 Antispam begin SYSTEM [165C] 11:36:51 Antispam end SYSTEM [165C] 11:36:51 Content filters begin SYSTEM [165C] 11:36:51 Content filters end [00] SYSTEM [165C] 11:36:51 Rules begin SYSTEM [165C] 11:36:51 Rules end [00] SYSTEM [165C] 11:36:51 Antispam finalization begin SYSTEM [165C] 11:36:51 Antispam finalization end SYSTEM [165C] 11:36:51 Delivery SYSTEM [165C] 11:36:51 Done
Once you see a long-lasting session in Session monitor, just find the thread ID (165C in the example above) and find it in the logs. That way we can troubleshoot where the processing hanged.
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