Exchange OST Issue

I have a Windows 2003 Server Running 2003 Exchange. Problem seems to be multiple users creating .OST files on their local computer.
I have email disappearing from certain date ranges on each computer (all random) After further investigation I used an OST-PST converter and found the missing email in the OST. I converted the OST to a PST and used Exmerge to import the PST back into Exchange with Dont create duplications....Well You all probably know how that turned out....duplicated calender/contact/and emails that were restored were showing as being sent or received 6 months from now.
It seems to me that the clients are losing connection to the exchange server and working in cache mode. When I open up Outlook from a few of the computers I get the prompt from working in offline mode ect...do you want to connect? I choose connect and then it establishes a connection with Exchange. I have one computer with an OST that is 3.5 gigs. I picked up this converter tool but can not find if there is a limit on size for converting an OST.....I know with Outlook 2003 there is a 2 gig limit with a PST unless you specify that it is bigger before the account is created.

Has anyone ever heard of a similar issue?
LVL 3
crwilson12Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
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.

itsirelandCommented:
Could your virusscanner be deleting files from the database? Possibly set up not to delete virusses from the Exchange data folder. Do you have a backup from the exchange server?

Any events on the Exchange server?

From the top of my head the maximum size for a PST is 2Gb but not sure about this. OST have no maximum but a standard max of 20 GB is set in the registry I believe but you'll find your answer here: http://support.microsoft.com/kb/832925.


0
crwilson12Author Commented:
Im not really trying to configure the size for the ost or pst....I knew there was a way to do it. It is a bit of a moot point to configure the size now. I have a 3.5 gig ost file. My issue is the users all creating the ost files and why it is happening.
0
itsirelandCommented:
An ost file contains a copy of all the emails stored in the mailbox on the server and is automatically created when you enable Caching. The OST is the cache. The ost file will not automatically delete deleted emails even if they were deleted from the mailbox so the OST may still contain copies of deleted emails.

The cache contains a copy of the mailbox and is controlled by the mailbox on the server. If you delete a file from the mailbox on the server this will also show up on the OST file.
 
I believe you should be looking at the mailboxes on the server and see why emails are deleted there.
There are no archiving solutions in place that may be archiving the emails?
Any events?

The connection problems shouldn't be occurring. Have a run at the Exchange Analysers, they hopefully tell you something's up: http://www.microsoft.com/technet/prodtechnol/exchange/downloads/2003/analyzers/default.mspx

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 Server OS

From novice to tech pro — start learning today.