SMTP Relay failure

We have implemented an mrp software package that will email out quotes and other documents. Need to setup a smtp server on the Windows 2000 server. Fails on Microsofts knowledgebase test. Have tried a tool from softstacks, that has been used at another customer location successfully, call freesmtp. It gives us a dns server error message. Tried using the info from KB293800 to make changes to IIS with no success. We know the isp is not blocking us. We have a SBS2003 Server in the domain and the Microsoft test works.
pilotglAsked:
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.

MikealclCommented:
Sounds like you can't lookup the MX records of the domains you want to send too.  Do your DNS servers forward lookups they cannot resolve to an internet server?
0

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
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
Email Protocols

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.