+OK <335738.1713897537@s23.coreserver.jp> -ERR authorization first
220 s23.coreserver.jp ESMTP 250-s23.coreserver.jp 250-STARTTLS 250-PIPELINING 250-8BITMIME 250-AUTH LOGIN PLAIN CRAM-MD5 250 SIZE 2048000000
+OK <585417.1713531153@s23.coreserver.jp> -ERR authorization first
220 s23.coreserver.jp ESMTP 250-s23.coreserver.jp 250-STARTTLS 250-PIPELINING 250-8BITMIME 250-AUTH LOGIN PLAIN CRAM-MD5 250 SIZE 2048000000