There have been a few postings on this subject but none quite fit my circumstances.

We have an exchange server and we set up BIS Blackberries to collect email from our excange server using the Outlook webmail method.

All of them seem to be seem to be getting each email at least twice. There are no filters/ forwarders or anything like that set up and in Outlook itself there are no duplications.

I looked at the following:

Alas I was not allowed to post a link so Clause 5below
***
Cause 5

A Microsoft Exchange email account is setup with the BlackBerry Internet Service using the IMAP protocol. The IMAP protocol allows all email messages to be stored and accessed directly on the messaging server instead of being downloaded to an email application.

Resolution

Re-integrate the Microsoft Exchange account with one of the following:
A POP account. For instructions, see KB02189.
A Microsoft Outlook Web Access account. For instructions, see KB03133.
An account using the BlackBerry® Mail Connector program. For instructions, see KB03043.
****
And clause 5 could apply as when we look on the advanced settings for the entry on the BIS webpage it does say IMAP. However we followed the solution given for Clause 5.

What other things can we try. One said to reset the devices, but I'm not sure how to do this. Is there a way of wiping the device that will not delete the telephone numbers from the device. Is there a way to just delete the service books from the device to try and reset then (I did find one article saying about deleting corrupt service books but then ones it said to delete were not an option on these devices).

Any help greatly apprecaited.

So are you certain BIS is setup to use OWA and not IMAP? I'm a bit confused by your post.

Seems to me like you should have a backup of whatever you're working on so if a device wipe is necessary it's not a big deal. The backup utility in Desktop Manager is very handy.

Yes, you can delete just the service books.

OK I'll try and explain better. But first can I confirm how I delete service books. If I go to the section where the service books are listed and delete every entry there is that OK?
Or do I have to delete specific service books only?

In this particular page:
blackberry.com/btsc/articles/69/KB05010_f.SAL_Public.html

Is say that I have to connect the blackberry to a PC to delete te servce books but why do I. can't I just delete the service books directly from the device?

I too am getting duplicate e-mail on a blackberry when the BIS is linking to a hosted microsoft exchange solution. Any ideas why and how to fix this would be appreciated.

regards,

Andre

check that you don't have multiple alias on your exchange. I recall having an issue and once that was fixed, my emails came in one at a time.

Hi Everyone... I'm having the same problem... I'm getting duplicate messages in my BB every time I open the email on my outlook Inbox Folder, the configuration it's IMAP and I can't get the OWA configuration to work... BIS is the type I'm using without any Redirector. I own a BB Flip 8220... Help... it's getting me crazy!
Cheers!