I agree to Seth that this seems more a like an upstream feature request. If you do end up filing an upstream bug, please link to it from here, so that Ubuntu can follow and either merge it down the road when a new version includes it or if the discussion reveals that it could be resolved via a different configuration that can be considered. Thanks!
** Changed in: amavisd-new (Ubuntu) Status: New => Incomplete -- 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