Oct 11 07:26:56 mail postfix/smtpd: NOQUEUE: reject: RCPT from convo.abc.com.my[188.8.131.52]: 554 5.7.1 <email@example.com>: Relay access denied; from=<firstname.lastname@example.org> to=<email@example.com> proto=ESMTP helo=<returnofconvo>
As shown in above, the convo.abc.com.my relay to use firstname.lastname@example.org to send email to email@example.com, is it right?
Does this error happen because of the fact that mail.xyz.com.my do not relay for convo.abc.com.my?
The mail server, mail.xyz.com.my is with external IP 184.108.40.206.
The server with address 220.127.116.11 is in the same LAN with server 18.104.22.168.
The postconf mynetworks show mynetworks = 127.0.0.0/8 192.168.210.128/27
Two server are within the same LAN by default zimbra allow the relaying. Why now cannot?
The weird thing is that only yahoo mail cannot sent, others can send out successfully.