calledSERVER -> CLIENT: 220 mx.google.com ESMTP tr10sm66282341o bb.6 - gsmtp
CLIENT -> SERVER: EHLO localhost
SERVER -> CLIENT: 250-mx.google.com at your service, [117.218.108.150]250-SIZE 35882577250-8BITMIME250-STARTTLS250-ENHANCEDSTATUSC ODES250 CHUNKING
CLIENT -> SERVER: AUTH LOGIN
SERVER -> CLIENT: 530 5.7.0 Must issue a STARTTLS command first. tr10sm66282341o bb.6 - gsmtp
SMTP ERROR: AUTH command...