SMTP-AUTH
S: 220 smtp.example.com ESMTP server ready C: EHLO jgm.example.com S: 250-smtp.example.com S: 250 AUTH CHOSUKE C: AUTH S: 334 Koe Ga Chiisai Mouichido! C: AUTH! S: 220
S: 220 smtp.example.com ESMTP server ready C: EHLO jgm.example.com S: 250-smtp.example.com S: 250 AUTH CHOSUKE C: AUTH S: 334 Koe Ga Chiisai Mouichido! C: AUTH! S: 220