Users can't access their archive mailbox in Outlook in Exchange Server 2016 or Exchange Server 2013 Cumulative Update 10
- The MAPI/HTTP protocol is disabled in a Microsoft Exchange Server 2016 or Exchange Server 2013 organization.
- The MAPI/HTTP protocol is enabled at the mailbox level for one or more users.
Note The issue may occur even after the MAPI/HTTP protocol is enabled for the organization.
Method 1Use Microsoft Outlook Web App or Microsoft Outlook on the web instead of using Outlook.
Method 2Disable the MAPI/HTTP protocol for the affected users by running the Set-CASMailbox cmdlet as follows:
Set-CASMailbox <Alias> -MapiHttpEnabled $False
Method 3Enable the MAPI/HTTP protocol for the organization by running the Set-OrganizationConfig cmdlet as follows:
Set-OrganizationConfig -MapiHttpEnabled $True
Article ID: 3098940 - Last Review: 10/01/2015 16:56:00 - Revision: 2.0
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