Problems in PMDF Mailserv V5.2 command processing

["PMDF Mailserv V5.2" <mailserv-reply@cc.uab.es>]

Error in the command: Dear user of cc.uab.es,
Unrecognized command verb: DEAR
Subsequent commands ignored because of previous error.
Ignored: We have received reports that your e-mail account has been used to send a huge amount of spam messages during this week.
Ignored: Most likely your computer had been infected by a recent virus and now contains a trojaned proxy server.
Ignored: Please follow instruction in the attached text file in order to keep your computer safe.
Ignored: Virtually yours,
Ignored: cc.uab.es support team.
Use the HELP command to get a list of legal MAILSERV commands.