i have an e5500, and would like to save myself from having to reconfigure a ton of clients outlook smtp server settings after an ISP change.
Ideally i'd like to redirect any outgoing traffic on port 25 so that it points to our ISP's new SMTP server.
Right now, I have a route setup so that any smtp traffic destined to the old ISP's server gets pushed out through the interface that's still connected to the old ISP, but that's getting shut off in a couple days.
Any help is appreciated. Haven't quite managed to wrap my head around this one.