Hello Everyone,
On the box we have a public listener and a private listener.
On the public listener, all emails are processed and delivered to the intended domains [abc.com , example.com] using the public interface ip address only. On the recipient domain end there is a firewall rule to allow only this ip to connect and send the email.
Now one of this domain [abc.com] is also relaying emails via the private listener with a Virtual Gateway configuration wherein we have a pool of ip addresses used to send out emails. Now when any user from abc.com sends an email to user@example.com, then that email never gets delivered to the example.com mailserver, it is held in the delivery queue. This was caused due to the fact that only public listener ip is allowed to connect to the example.com mailserver, whereas as per the Virtual Gateway config, all emails from abc.com are using a different pool of ip to send out the emails.
We cannot have all the ip addresses used within the virtual gateway be added on the firewall at example.com, hence would require someone to suggest on how do we use the public listener ip address for all the domains which are there in the Incoming Mail Flow Policy /RAT/SMTP Routes and not use the virtual gateway.
In short, can we have an exception list of domains which shouldn't be using the virtual gateway config, and use the default public listener ip.
regards,
Yogesh Padharia
