We have email reconciliation issue for 1 user, running exchange 2003, BESX 5.0, outlook 2003. Other users are fine with the email reconciliation, while deleted/sent emails in BB, never sync with outlook and Vice-versa. Only this user having problem, so i wonder could be this user not using the default outlook data file, since his data file is stored in D drive, could this be the issue?

Mail stored in PST files are not visible to the BES. In an Exchange environment, Outlook should use MAPI and never pull mail from the server.

mean must use the default outlook data file instead of storing pst in D drive? if not reconciliation won't work?

Any time a PST is used, reconciliation won't work. The Outlook profile must specify Exchange.

If exchage can not access a PST file, how can BES?

Just to be clear - an OST file is not the same as a PST file. If it's an OST file you're talking about, it doesn't matter where it's stored as it's an offline version of what's on exchange. If it's a PST file, you've setup the email wrong on the client.

Here's a quick test if available. Log into OWA. The BlackBerry should reflect OWA if everything is configured correctly.

If...
- it's right in Outlook
- If it's not right on the BlackBerry
- If it's not right in OWA

.... the BES ain't the problem! BES communicates with Exchange and Not the Email client (aka Outlook).

once i changed to the default mailbox, the reconciliation works like a charm. Thanks for everyone help.