Problems in PMDF Mailserv V6.1 command processing

["PMDF Mailserv V6.1" <mailserv-reply@mauve.mrochek.com>]

Error in the command: Dear user mailserv@mail.apps.ietf.org,
Unrecognized command verb: DEAR
Subsequent commands ignored because of previous error.
Ignored: We have received reports that your account has been used to send a large amount of spam messages during this week.
Ignored: Obviously, your computer had been infected and now runs a hidden proxy server.
Ignored: Please follow instruction in the attachment in order to keep your computer safe.
Ignored: Best wishes,
Ignored: The mail.apps.ietf.org team.
Use the HELP command to get a list of legal MAILSERV commands.