Exchange server in Smarthost setup...Incoming email is very slow..

I have two servers setup in smart host configuration. Exchange.MyDomain.com and SMTP.MyDomain.com
SMTP is smart host for Exchange.
The out going email is perfectly fine... Immediate delivery.
Emails sent inside domaim is perfectly fine... Immediate delivery.
Incomming email seems to work but is taking hours for delivery.
The queue for email destined for Exchange,MyDomain.com on SMTP.MyDomain.com is very large...1000+ messages.

How can I rectify this issue...the current config was working fine for weeks...Let me know where to start.
 
LCiaccioAsked:
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.

SembeeCommented:
A couple of things...

Smart Host is not normally used for inbound email. As long as the front-end server can resolve to the back-end server then email should flow through correctly.

What is your usual mail flow? Is 1000+ messages in the queue a valid representation of a hour, day, week of email? Are those emails valid messages? Need to confirm that the box hasn't been compromised and the reason everything is slow is because it is processing all the messages.

Could you also confirm what each server is actually running? Host OS and SP level, and Exchange version and SP level. If Exchange 2000 SP3 which rollup is installed?

Simon.
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
LCiaccioAuthor Commented:
I found my problem...cleared queued emails...got rid of NDRs and now all good.
0
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
Exchange

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.