Many functions of MDaemon can be accessed remotely using the email transport system itself, by sending a specially formatted email to the MDaemon system account, "MDaemon@<MDaemon's Domain>". Messages sent to the server are stored in the server's message directory just like any other user.
Some of these control messages require a valid account on the server. For those commands which require a valid account, the message must be authenticated during the SMTP process using SMTP AUTH.
There are two, broad categories of commands that can be used in email messages: Mailing List, and General Email.
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