need to set up exchange 2003 to receive mail on a diffrent port, then deliver itt on standard port

Hi, here is the situation. I have a customer that uses exchange 2003 with GFI pop2exchange so that the server pops the mail from the real mail server, then smart hosts it to their ISP be delivered. They just moved offices for the summer.
Their new ISP will not allow them to smart host, nor will they allow you to connect to any other servers on port 25.
So my thought is to use my exchange 2003 server to relay the mail for them, in order to do this, I created a new virtual smtp server, but I do not know how to get this server to receive mail on a different port, I want it to receive mail on port 4545, and then relay it out to the internet on port 25.
Can someone help me please?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sauljAuthor Commented:
That did it, THANKS!
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.