Exchange 2010 ShadowRedundancy Queues growing

Hey guys,

I am running and Exchange 2010 setup in a DAG.  I have 8 servers.  2 Mail, Hub, CAS & Edge.

One of our edge servers has about 9500 messages backed up in Shadow Queues with the next hops being our hub servers.

Mail is flowing as I can send myself external e-mail messages and get them immediately.

Any idea what would cause shadow copies of e-mails to hang in the edge queue?
Joel ParmerProgram CoordinatorAsked:
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.

AmitIT ArchitectCommented:
Don't worry about Shadow Queue. You can leave it, queues will reduced automatically.
0
Simon Butler (Sembee)ConsultantCommented:
Shadow queues are copies of messages that are being delivered to another server, which Exchange holds until the message delivery is confirmed.
A small build up isn't unusual, but the numbers you are seeing (unless that is your expected mail flow in less than hour) is unusual.

The problems are usually around AV scanning something it shouldn't do, something else scanning the SMTP traffic or a suspect subscription to the Edge server.

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
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
Microsoft Legacy OS

From novice to tech pro — start learning today.