Restrict incoming e-mails on Exchange with only 2 ip's


We have a 3rd party spam service that filters all e-mail from spam, viruses before sending it on to our exchange server.  The 3rd party recommends that we lock down exchange to only accept e-mail from their ip addresses they have provided us with.

I just want to make sure I am putting the info in the correct space.   I have see the delivery restrict tab in Exchange 2003 but am not 100% sure that's what I need.      I would just like to tell Exchange "hey only accept e-mail from these 2 ip's addresses...anything else reject it.

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.

What you are looking for is the "Connection control" feature of the SMTP service inside Exchange.
Use the Exchange System Manager > Servers > YOURSERVER > Protocols > SMTP > Virtual Defaultserver for SMTP > Properties of the Virtual Defaultserver for SMTP. Then go to the "Access" tab and click on "Connection" in the "Connection control" section. There you will probably want to switch from granting access to "All exept the list below" with an empty list to "Only the list below" with the two IP addreses added to the list.

Claus *
montyjenkinsAuthor Commented:
Great!  That helps out a lot.   Whenever I make the change, does that take affect real time or will I need to restart any services at all?

Should be real time but you can stop and restart hte virtual defaultserver for SMTP by right-clicking on it in the Exchange System Manager.

- Claus

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
montyjenkinsAuthor Commented:
Great.  Thanks for the help.
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.