220-vps.mchusada.com ESMTP Exim 4.96.2 #2 Mon, 06 Apr 2026 06:30:29 +0700 220-We do not authorize the use of this system to transport unsolicited, 
220 and/or bulk e-mail.
500 unrecognized command
500 unrecognized command
500 unrecognized command
500 Too many unrecognized commands