(FAQ) The MDaemon domain is listed on a internet blacklist. What do I have to do to get off the blacklist?

There are many different reasons for being added to a blacklist.  The most common reason being your server allows messages to be sent out from local addresses with no verification. While technically not a relay, certain blacklist sites may blacklist the domain/server for allowing mail from local addresses without first forcing authentication.

In the MDaemon GUI or Remote Administration:

  1. Click Security
  2. Click Security Settings...
  3. Select SMTP Authentication
  4. Check Authentication is always required when mail is from local accounts
  5. Check Mail from 'postmaster', 'abuse', 'webmaster' must be authenticated
  6. Click OK
  7. Request a de-listing from the blacklist that had added the domain originally.

Note - this will require MDaemon users using mail clients (Outlook, Thunderbird, etc...) to enable outgoing authentication to send out mail through the MDaemon server.  WorldClient uses outgoing authentication by default.