Max OSX Server 5.2 Postfix missing SMTP Logs

Solution 1:

Apple have a new log system in Sierra. It is not using the log files or asl.

The logs are in memory or a log db.

 

log — Access system wide log messages created by os_log, os_trace and other logging systems.

 

You can read the smtpd log from terminal with this command.

log show –start “2016-10-16”¬† –end “2016-10-17” –predicate¬† ‘process == “smtpd”‘ –debug

 

Solution 2:

It seems that after an upgrade or a new install the log level of smtp is at such a high level, it does not report anything unless there is a serious error with the smtp server.

Try these commands to get smtp logging going again, worked for me with a couple of servers who did not seem to have any smtp logging enabled, but mail worked and outgoing as well:

 

sudo serveradmin settings mail:postfix:log_level = “debug”

sudo serveradmin settings mail:postfix:mail_events_log_level = “debug”

 

Courtesy : https://discussions.apple.com

 

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