Postfix Queue Management

If emails are getting delayed, its better to inspect postfix mail queues, coupled with postfix mail log.

Status/Shape of Mail Queue

Postfix maintains different queues for different  and  deferred queues are of our interest.
Ideally, we should never have a mail in deferred queue.
qshape command will show shape of active mail queue by default. Ideally it should be as close as to empty since postfix sends email instantly!


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login banner Linux

To create a banner so that whenever a user logs into a system will see some default text, you can couple of options
1. put the default text into /etc/motd
2. type echo “<the text you want to display>” into /etc/profile
3. type echo “<the text you want to display>” into user home .profile file. Read More