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 DECEMBER 12, 2018
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 domain1.com. We also own mail.domain1.com, but it is hosted by a 3rd party. A user email@example.com has a forwarding rule to forward to firstname.lastname@example.org. We have a smarthost defined on tcp_local and this all works fine and the email forwarded to email@example.com goes thru the smarthost. The problem is that when firstname.lastname@example.org tries to forward to email@example.com, it does not use the smarthost and instead uses the default gateway.
We would like any mail that is forwarded to @mail.domain1.com to also use the same smarthost as @domain1.com does. Again, we are not hosting mail.domain1.com -- we just own it.
From these mail.log_current snippets, we can see what is happening:
When mail is sent to @mail.domain1.com, 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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