Not sure which services/protocola used by BES on the beacked, it MAPI or IMAP?

What version of BES?Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Version 5.0

MAPI. I don't think any version of BES has used IMAP. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources | In the UK? Hire Me.

BES uses MAPI. I don't think it's converted to Web Services yet. That's why it beats up te information store so much.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi Viministrator, The Messaging Application Programming Interface (MAPI) profile is used to facilitate data communication between the Microsoft® Outlook® email application and the Microsoft® Exchange Server. Within the BlackBerry® Solution Services, MAPI is used by the BlackBerry® Enterprise Server to communicate with the Microsoft® Exchange Server. You can know more detail from this document: How to recreate the BlackBerry Enterprise Server MAPI profile http://btsc.webapps.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB10285 Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

Hi Viministrator, The Messaging Application Programming Interface (MAPI) profile is used to facilitate data communication between the Microsoft® Outlook® email application and the Microsoft® Exchange Server. Within the BlackBerry® Solution Services, MAPI is used by the BlackBerry® Enterprise Server to communicate with the Microsoft® Exchange Server. You can know more detail from this document: How to recreate the BlackBerry Enterprise Server MAPI profile http://btsc.webapps.blackberry.com/btsc/search.do?cmd=displayKC&docType=kc&externalId=KB10285 Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com

Thanks Evan, it helps. now i can turn off the IMAP as well as POP3 on the Exchange.