kunal393 wrote:
Jun 6 04:23:29 server1 postfix/smtp[1994]: E50D62E00790: to=<smtpmails.in@gmail.com>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.11, delays=0.06/0.05/0/0, dsn=4.4.2, status=deferred (lost connection with 127.0.0.1[127.0.0.1] while receiving the initial server greeting)
Port 10026 (and 10024, 9998) is Amavisd service, please make sure it's running. If it doesn't, please check its log file (same as Postfix log file) to figure out why it doesn't work.