Tag Archives: exim

Exim Tips & Tricks – Unclog your queue!

Original article here

This article will focus on some general Exim MTA tips and tricks as well as how to parse mail logs. I originally put this guide together for use with Exim on cPanel. Many cPanel server administrators use the built in Exim MTA without giving it a second thought because it works. It works until they end up providing virtual hosting systems (shared hosting) where some of the users do not update their scripts regularly or simply think setting a cron job that runs every minute and clogs the queue is a good idea. Then running the built in Exim MTA with no knowledge of how it works becomes a disaster! Learn Exim today and save your self some serious headaches!

Is your Exim queue piled up with thousands or even millions of emails? Are you getting complaints from your upstream provider because your servers are sending spam? Are your users complaining emails that they are expecting aren’t coming in or take hours or days to get there? Are your servers blacklisted on the major lists and you have no idea why? If any of these situations describe your problems then this guide should serve as a good primer for you to get the basic idea of how Exim works. You can use the knowledge here to solve all of these problems!

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Exim 4 CheatSheet

Originally posted HERE

Message-IDs and spool files
The message-IDs that Exim uses to refer to messages in its queue are mixed-case alpha-numeric, and take the form of: XXXXXX-YYYYYY-ZZ. Most commands related to managing the queue and logging use these message-ids.

There are three — count ’em, THREE — files for each message in the spool directory. If you’re dealing with these files by hand, instead of using the appropriate exim commands as detailed below, make sure you get them all, and don’t leave Exim with remnants of messages in the queue. I used to mess directly with these files when I first started running Exim machines, but thanks to the utilities described below, I haven’t needed to do that in many months.

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