Aug 28 11:13:00 SYSTEM[1996]: Trying to smtp.163.com:25
Aug 28 11:13:01 SYSTEM[1996]: Connected to relay host smtp.163.com
Aug 28 11:13:03 SYSTEM[1996]: Error: Remote host returned "500 Error: bad syntax"
Aug 28 11:13:03 SYSTEM[1996]: Error: Error occurred while sending MAIL FROM command.
Aug 28 11:13:03 SYSTEM[1996]: Error: Cannot send email to <wr5532@126.com>;
Aug 28 11:13:03 SYSTEM[1996]: Disconnected from remote host
