Patch Majordomo to work with DMARC

This patch fixes Majordomo by doing three things:

  1. Change the email From: header to be the email address of the list itself
  2. Add a new variable to Majordomo to allow enabling on a list-by-list basis
  3. Add the Reply-to: header with the email address of the author

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Replace DB content on the fly

This appears to be a little known fact, so it has earned the right to be posted as a how-to on my site. If you have a database with lots of content and you discover to your dismay that you have made…

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Test your servers Virus filters - don't assume

On one of our RHEL5 servers running Ensim, we noticed after the last big update of RHEL using 'yum update', that MailScanner was capped out, using tons of our CPU power. In the past when this happens I usually find it is ClamAV acting up. However, we were using on this server a free version of f-prot. I took a chance and purchased the latest greatest mail server version of f-prot and installed it. Bingo, the problem went away.

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Upgrading Ubuntu 14.04 -> 18.04 - MariaDB issues

This post covers the issues I experienced when upgrading a remote VM on Ubuntu 14.04 to 18.04. Some fine folks online say "Don't do it" and others say "I just upgraded 100 VMs without any issue". If you are going to upgrade, ensure you have a good snapshot and backups. Upgrading is fraught with danger.

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