This is what I am getting in the logs. Code: Jun 4 23:17:23 server2 postfix/smtpd[10588]: connect from mail-oi1-f181.google.com[209.85.167.181] Jun 4 23:17:24 server2 postfix/smtpd[6674]: warning: unknown[80.94.95.203]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Jun 4 23:17:24 server2 postfix/smtpd[7629]: warning: unknown[80.94.95.242]: SASL LOGIN authentication failed: VXNlcm5hbWU6 Jun 4 23:17:24 server2 postfix/smtpd[6674]: disconnect from unknown[80.94.95.203] ehlo=1 auth=0/1 rset=1 quit=1 commands=3/4 Jun 4 23:17:25 server2 postfix/smtpd[7629]: disconnect from unknown[80.94.95.242] ehlo=1 auth=0/1 rset=1 quit=1 unknown=0/1 commands=3/5 Jun 4 23:17:31 server2 postfix/smtpd[10588]: NOQUEUE: filter: RCPT from mail-oi1-f181.google.com[209.85.167.181]: <[email protected]>: Sender address triggers FILTER lmtp:[127.0.0.1]:10026; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail-oi1-f181.google.com> Jun 4 23:17:31 server2 postfix/smtpd[10588]: NOQUEUE: filter: RCPT from mail-oi1-f181.google.com[209.85.167.181]: <[email protected]>: Sender address triggers FILTER lmtp:[127.0.0.1]:10024; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<mail-oi1-f181.google.com> Jun 4 23:17:31 server2 postfix/smtpd[10588]: 6E0D918E483E: client=mail-oi1-f181.google.com[209.85.167.181] Jun 4 23:17:31 server2 postfix/cleanup[10598]: 6E0D918E483E: message-id=<CAJGDCRWZp1Jnpw_BOAnYNJB2Gz5gvEsx_hK27-NGQZ_4zGiaiQ@mail.gmail.com> Jun 4 23:17:31 server2 postfix/qmgr[1135]: 6E0D918E483E: from=<[email protected]>, size=3172, nrcpt=1 (queue active) Jun 4 23:17:31 server2 postfix/error[10599]: 6E0D918E483E: to=<[email protected]>, relay=none, delay=7.6, delays=7.5/0.01/0/0.01, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to 127.0.0.1[127.0.0.1]:10024: Connection refused)
This is resolved. Actually I was setting another server and by mistake I updated the IP address in /etc/hosts in this server.
