Hi, I receive the following error when I try to rebuild the Offline Address List: Unable to create the required MAPI profile. Please verify that you have sufficient permissions to write to the MAPISVC.INF file. ID no: c103073a Exchange System Manager. In the Application log, the following entry is written: Event Type: Error Event Source: MSExchangeSA Event Category: Mailbox Management Event ID: 9200 Date: 4/14/2005 Time: 4:24:00 PM User: N/A Computer: GSF-EXCH01 Description: Failed to perform MAPI logon. Well, I first checked the MAPISVC.INF file, but the permissions are not the issue, especially as I logged in as an administrator (with full exchange admin rights). Searching on google was not successful... I am running a win2k3 domain with an win2k3 server running exchange 2003 SP1. Does anyone has any experience with these errors, or knows how to solve them? Kind regards, Dennis Appelboom XB