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Postfix Cheat Sheet

Queue handling and statistics

http://www.tech-g.com/2012/07/15/inspecting-postfixs-email-queue/

https://www.howtoforge.com/postfix-monitoring-with-mailgraph-and-pflogsumm-on-debian-lenny

List mail queue

  • mailq or postqueue -p

View message details

  • postcat -vq 6E8E14029B

Process the queue

  • postfix flush

Delete deferred mails from queue

  • postsuper -d ALL deferred

Very cool statistics

  • pflogsumm /var/log/mail.log | more

 

Rewrite sender adress 

  • vi /etc/postfix/main.cf 
    • sender_canonical_maps = hash:/etc/postfix/sender_canonical