v5.1.7 Released

email spam filter server



  • Bug fix: corrected Postfix whiteliting mechanism during rebuilds.
  • Moved executable dtrx to mb-dtrx

Upgrade Notes

This update may require a special switch as fail2ban was added as an additional package. To upgrade:

apt-get update
apt-get --with-new-pkgs upgrade


Optional Updates

If you wish to manually update your Nginx TLS support to the new model, edit the Mailborder files in /etc/nginx/site-available and change the ssl_protocols parameter to this: ssl_protocols TLSv1.2 TLSv1.3;


Ubuntu 20.04 LTS

This upgrade is supported, but is not required. You may continue to run Ubuntu 18.04 LTS.

This upgrade can easily take an hour on a fast connection. Plan accordingly.

To upgrade from Ubuntu 18.04 to 20.04:

  • First, upgrade to the latest version of Mailborder as shown above.
  • Take a snapshot or full backup of some kind.
  • Edit /etc/apt/sources.list and change the bionic reference to focal for the Mailborder repository. (deb.mailborder.com) Do this after upgrading to the latest version of Mailborder and before running the next step.
  • Run as root: do-release-upgrade --allow-third-party
  • If you need or want help, contact Mailborder support.

23 March 2022