Recommended Limits for Exchange on Several Platforms

I am interested in finding the following information

1.) Maximum recommended number of items per folder
2.) Maximum recommended number of nested folders
3.) Maximum recommended number of overall mailbox size
4.) Maximum recommended item/attachment size (for both incoming and outgoing emails)

I am interested in this info both as it applies to Exchange 2003 and 2007, as well as the folliwing apps:

Outlook 2003
Outlook 2007
Entourage 2004
Entourage 2008

I have had issues with large hosted exchange mailboxes interfacing with Entourage (2004). I have also had users to have more than 2,000 items in any folder (especially inbox, deleted, etc) slowing down or working poorly as a result.

Any help would be appreciated.

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.

James MontgomeryCommented:
This should get you started.

In general it is item count not size that matters, and plugins that generate mapi/rpc traffic.

some more food for thought:

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

From novice to tech pro — start learning today.