220 s177.coreserver.jp ESMTP 250-s177.coreserver.jp 250-STARTTLS 250-PIPELINING 250-8BITMIME 250-AUTH LOGIN PLAIN CRAM-MD5 250 SIZE 2048000000
+OK <116002.1713204034@s177.coreserver.jp> -ERR authorization first
220 s177.coreserver.jp ESMTP 250-s177.coreserver.jp 250-STARTTLS 250-PIPELINING 250-8BITMIME 250-AUTH LOGIN PLAIN CRAM-MD5 250 SIZE 2048000000
+OK <751065.1713067560@s177.coreserver.jp> -ERR authorization first