Depending on your security and privacy settings on your Apple Mac, you may get a message that software or an app you were installing “was blocked from opening because it is not from an identified developer.” And when you try to override it, the ‘Allow’ or ‘Open Anyway’ button doesn’t work. The explanation below may be why!

If you are an administrator or moderator of a Mailman mailing list that is on emergency moderation, it may be that you will want to allow certain list members to post without being moderated. You may already know the general way to do this (while approving one of their posts, add them to the ‘Accepts’ sender filter), but what if you forget to do that, or accidentally check “ban” or add them to the ‘Rejects’ or ‘Discards’ sender filter? Here is how to make it so that they can post unmoderated to your Mailman list that is on emergency moderation (which simply means that all posts accept for moderator and administrator posts are held for approval).