Outlook Integration Error.

Error message on Communicator: Outlook Integration Error.

Error: There was a problem connecting to Microsoft Office Outlook. The email address used in your default Outlook profile is different from the sign-in address used in Communicator. Change your default Outlook Profile to match the sign-in address you are using in Communicator, and then sign out an sign back in to Communicator. 

Problem Statement:

If user is getting Outlook integration error that means user will lose all integration features, like IM will not save in Conversation history folder, Calendar info will not sync, OOO information etc.

This issue is caused by the e-mail comparison check in Communicator 2007. If the primary Simple Mail Transfer (SMTP) address on the user object does not match the one in the Microsoft Office Outlook profile, you receive the Outlook integration error message.

Resolution:

1.     Make sure, Communicator or Lync client must be updated.

2.     If SIP URI and SMTP are different, than change SIP URI to look like SMTP addresses or changes it to SAM Account name.

Or do the following to disable email comparison check.

3.     Click Start, and then click Run.

4.     In the Open box, type regedit, and then press ENTER.

5.     Locate and then right-click the following registry subkey:

              HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Communicator

6.     Point to New, and then click DWORD Value.

7.     Type DisableEmailComparisonCheck as the name of new registry entry, and then press ENTER.

8.     Double-click DisableEmailComparisonCheck, type 1 in the Value data box, and then click OK.

 

9.     Exit Registry Editor.

If you want to disable Email comparison for all user then you can use Group Policy.

1.     In Group Policy Object Editor, expand Computer Configuration, expand Administrative Templates, expand Microsoft Office Communicator Policy Settings, and then click Microsoft Office Communicator Feature policies.

2.     Double-click Disable email comparison check for Outlook PIM integration, click to select the Enabled option, and then click OK.

Thank you.