1– Manage postfix queue
To watch the queue just launch this command:
#postqueue -p
To delete a single mail, get the message ID with “postqueue –p” and launch this command:
#postsuper –d queue_id
To delete the queue just launch this command:
#postsuper –d ALL
To see the number of email sent to each domain and their time in the active queue:
#qshape active
To see the number of email sent to each domain and their time in the active queue:
#qshape deferred
Try to send again a single message:
#postqueue –i queue_id
Try to send again all mails in the queue:
#postqueue -f
Lock a message in the queue:
#postsuper –h queue_id
Release a message in the queue:
#postsuper –H queue_id
Show the content of a message in the queue:
#postcat queue_id
2 – Manage postfix daemon
Launch the daemon:
#service postfix start
Stop the daemon:
#service postfix stop
Get the status and PID:
#service postfix status
Reload the daemon:
#service postfix reload
3 – Manage configuration changes
After each change of the configuration file you should launch a check to see if your file is correct:
#postfix check
List of the log files:
Statistics: /var/log/mail/statistics
Mail logs: /var/log/maillog
General logs concerning general issue with the daemon: /var/log/messages
The Old School Geek 