Mail Relay Access Denied

[seyfullah baskoylu]

Hello All,
We installed the latest version of the proxmox mail gateway software. When an e-mail is sent from inside to outside, we get the following error message.
Thank you for your help.

Dec 25 23:29:14 pmg43 postfix/smtpd[71122]: connect from unknown[192.168.1.96]
Dec 25 23:29:14 pmg43 postfix/smtpd[71122]: NOQUEUE: reject: RCPT from unknown[192.168.1.96]: 554 5.7.1 <abc@yahoo.com.tr>: Relay access denied; from=<abc@kocaeli.edu.tr> to=<abc@yahoo.com.tr> proto=ESMTP helo=<abcd.kocaeli.edu.tr>
Dec 25 23:29:14 pmg43 postfix/smtpd[71122]: disconnect from unknown[192.168.1.96] ehlo=1 mail=1 rcpt=0/1 quit=1 commands=3/4

 

[hata_ph]

Is 192.168.1.96 your PMG?
Have you configure relaying and relay domain to your local SMPT server?

 

[Stoiko Ivanov]

For outbound mails (from your network to the internet) - you need to add your internal network in GUI->Configuration->Mail Proxy->Networks
and configure your internal server to use the internal port (26) of PMG

I hope this helps!