POSTFIX

Software Name: Postfix
Type: Mail Transfer Agent (MTA).
Operating System: Linux, Unix.

Postfix is used for sending and recieving (routing) emails. As it is highly robust and built with a secure design it servers a large number of the global email traffic every day.

Userful Postfix commands:

You can empty / delete the mailq (mail queue) in Postfix by typing the following command:

postsuper -d ALL

To delete individual emails in the mail queue type:

mailq | tail +2 | grep -v '^ *(' | awk 'BEGIN { RS = "" } { if ($8 == "the@emailaddress.com" && $9 == "") print $1 } ' | tr -d '*!' | postsuper -d -

(change the@emailaddress.com to the email adress you want to delete).