Cisco ASA: Nating SMTP traffic to a second public IP

Hi Experts, was wondering if this is even possible on a Cisco ASA or
possibly someone could give me a hint.

I have a scenario here whereby, I would want all my SMTP traffic (SMTP
Server IP 192.168.10.1) to go through a second public IP (assume 1.1.1.2),
while all internet traffic continues to go through the primary IP (1.1.1.1).

A quick solution would have been to only permit the SMTP server from
sending smtp but this is not possible as we have a couple of mobile devices
doing push email; so just permit only the smtp server would be a nightmare.

I know ASA can't do policy routing, is this possible?

Thanks

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Received on Thu Feb 20 2014 - 10:52:36 ART