I need to rewrite the SMTP domain on inbound email and deliver to the new domain via MX. So e.g. mail coming in for [email protected] gets rewritten as [email protected] and sent on. The name part of the address before the @ should stay the same, just the domain portion needs to change.
Before I go and set up a postfix server or something like that, does anyone know if this can be done in the firebox. It's a XTM850 on 12.1.3