v5.1.1 Released

email spam filter server


Ubuntu 20.04 LTS

  • Ubuntu 20.04 LTS is now supported.
  • Upgrades from Ubuntu 18.04 to 20.04 on existing Mailborder servers is also supported.


  • Thai language added.
  • Simplified Chinese language added.
  • Bulgarian language added.
  • Missing German language file fixed.

Bug Fixes

  • Phishing detection corrected to not identify as virus.
  • Empty blacklist and whitelist entries now removed and corrected automatically.
  • Fix a bug in Child server installation of the criterion database.
  • Criterion database permissions corrected.
  • Email Objects will now correctly be added to the Postfix routing tables.
  • Dr.Web antivirus results are now read correctly.
  • Updated filter to allow images in signature blocks regardless of file names or extensions if the image MIME type is allowed via policy.
  • Fixed GUI row color display for non-quarantined items.
  • Increased receive timeout on ClamAV Freshclam for slow connections.
  • OS checks now automatically correct PHP FPM services.
  • Permissions on Mailborder services corrected.
  • Permissions on Mailborder cron files corrected.
  • innodb_file_format_max removed from MariaDB installations running Ubuntu 20.04.
  • Various code corrections addressing execution or depreciation warnings.

Updates and Features

  • System reporting mechanism updated.
  • Antivirus report format updated.
  • Added whitelist option to message release dialogs.
  • Whitelists and Blacklists now allow multiple options for email, domain, host, and network.
  • Portal Users can now whitelist during the quick web release.
  • Database structure updates.
  • Mailborder package repository updated.

To update your server(s), run the following commands with root privileges from the command line:

  • apt-get update
  • apt-get dist-upgrade

To upgrade from Ubuntu 18.04 to 20.04:

  • First, upgrade to Mailborder 5.1.1 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 5.1.1 and before running the next step.
  • Run as root: do-release-upgrade --allow-third-party
  • Select the default option to keep everythingexcept /etc/apparmor.d/usr.sbin.clamd which needs to be replaced with the new version.
  • If you need or want help, contact Mailborder support.

11 February 2022