how to configure outgoing mail, depending on the sender?

[adminuniscan]

I have Cisco C170 and have two domains and two external IPs. How can I configure the Cisco for outgoing messages depending on e-mail sender in header message?

Example:

domain1.com --> IP1
domain2.com --> IP2

Thank you.

[munbali]

Hello adminuniscan,

you can do that with one of the below methods:

1- from the CLI issue the command altsrchost, and create a mapping that the emails from domain 1 should use the interface that has the IP1 and emails from domain 2 should use the second interface that has IP2

2- create a message filter with the condition on the mail from and the action of alt-src-host or an outgoing content filter with the action of Deliver from IP Interface

feel free to check the following as well

https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118132-configure-esa-00.html

Regards,

Muna Bali