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Routing Mail From a Third Party Hosted Domain That Appears to Be a Sub-Domain, to a Local Smarthost (Doc ID 1918949.1)

Last updated on FEBRUARY 13, 2023

Applies to:

Oracle Communications Messaging Server - Version 7.0.3 and later
Information in this document applies to any platform.


Using:  Messaging Server 7u3p15.

Our domain is We also own, but it is hosted by a 3rd party. A user has a forwarding rule to forward to We have a smarthost defined on tcp_local and this all works fine and the email forwarded to goes thru the smarthost. The problem is that when tries to forward to, it does not use the smarthost and instead uses the default gateway.

We would like any mail that is forwarded to to also use the same smarthost as does. Again, we are not hosting -- we just own it.

From these mail.log_current snippets, we can see what is happening:


When mail is sent to, the channels being used are tcp_intranet ->tcp_intranet, whereas when mail is sent to other outside domains, tcp_intranet -> tcp_local is being used.

The smarthost is defined ontcp_local.


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