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Introduction

Exim is a powerful and flexible message transfer agent (MTA) used for managing email on Unix-like systems. It is widely adopted due to its customizable features and is a popular alternative to other MTAs like Sendmail. This cheatsheet covers commonly used Exim commands to manage email queues, view message logs, and troubleshoot email delivery.

Prerequisites

• Root or administrator access to the Linux system.
• Basic familiarity with Linux commands and Exim’s mail queue management.

Here is a cheat sheet for you to some of the most commonly used commands:-

• Send a specific message

  exim -M id

• Process the entire mail queue

  exim -qf

• Flush frozen messages

  exim -qff

• View message log

  exim -Mvl id

• View message headers

  exim -Mvh id

• View message body

  exim -Mvb id

• Remove message from the queue

  exim -Mrm id

• Bounce a message

  exim -Mg id

• Summary of messages in queue

  exim -bp | exiqsumm

• Show what Exim is doing

  exiwhat

• Show the number of messages in the queue:

  exim -bpc

• List messages in the queue

  exim -bp

   

  Conclusion

  This Exim cheatsheet provides essential commands for managing and troubleshooting your mail server. Regular use of these commands ensures efficient queue management and message tracking. For more in-depth customization or troubleshooting, refer to Exim’s official documentation or contact support.