Dears I need your support please I get below error when try sending email host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=01280-01 - Temporary MTA failure on relaying, From MTA() during fwd-connect (No greeting, dt: 35.036 s): id=01280-01 (in reply to end of DATA command) Dears I used :- Centos 6.3 ,ISPconfig ,Postfix and Roundcube can anyone help me in this regard Thanks .
I'm getting same error, any solutions? I followed The Perfect Server: https://www.howtoforge.com/tutorial...4-jessie-apache-bind-dovecot-ispconfig-3-1/2/