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(FAQ) Why is MDaemon not honoring a mailing list's security settings?

I have a mailing list that is set to read-only, yet some members are still able to post. Why is this?

There are three possible reasons that someone who does not have the given rights to a list would be able to post:

  1. If the email address starts with 'MDaemon@' it will be able to post to the list (but you should not have a list member called MDaemon under any normal circumstance).
  2. If the email address is the same that is specified as the 'Send returned mail to:' on the Notifications tab of the list editor they will be able to post.
  3. If the email address is a domain or global administrator on the MDaemon server they will be able to post.