NAT question

[SeanT]

I'm having a few issues mostly with different mail servers on my network. With NAT is it possible to setup pfsense to allow inside to outside to inside? For example my mail server's public ip 208.122.120.10 the internal IP is 10.1.2.224 and I have an exchange server also, the problem is the exchange server can't go from it's internal IP to the external IP of the second mail server and NAT across back to the internal IP of the second mail server.  Is there a way to configure this?

[GruensFroeschli]

Enable NAT reflection.

[SeanT]

Thanks, Didn't see that option.