Recently, withou any changing in my configurations, the e-mail send to any gmail accounts are getting deferred:
Nov 5 18:00:38 tampa postfix/smtp[5687]: 88D6A48F2: to=<[EMAIL PROTECTED]>, relay=gmail-smtp-in.l.google.com[72.14.205.27]:25, delay=2189, delays=2186/0.01/2.6/0.54, dsn=4.5.0, status=deferred (host gmail-smtp-in.l.google.com[72.14.205.27] said: 451 4.5.0 SMTP protocol violation, see RFC 2821 k27si638904qba.10 (in reply to end of DATA command)) The problem is only with gmail. PS.: My server receive any e-mail from any gmail account, the problem is olny sending. The most fucking issue is that two e-mails that a sended among various, surprisinly were sent: one of them is: Nov 5 17:40:40 tampa postfix/smtp[4601]: D2E7448D4: to=<[EMAIL PROTECTED]>, relay=gmail-smtp-in.l.google.com[72.14.205.27]:25, delay=1753, delays=1748/3.1/0.79/0.99, dsn=2.0.0, status=sent (250 2.0.0 OK 1225914048 k8si588760qba.5) WFT?