Hello Boris, my assumption is the file extension is used because some operating system user interfaces do magical things with files with given extensions. Different extensions may not have magical properties.
If you can't find an amavis setting for this behaviour it might be worth reporting upstream as a feature request. Thanks ** Information type changed from Private Security to Public Security -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1787421 Title: Amavis passes banned files in archive with wrong extension To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/amavisd-new/+bug/1787421/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs