Outlook Connectivity with MAPI over HTTP | Microsoft Community …
May 9, 2014 · MAPI/HTTP increases the CPU load in the Exchange Client Access Servers. This is a 50% increase over Exchange 2013 RTM, however it is still lower than Exchange 2010 …
Understanding how Outlook, CDO, MAPI, and Providers work …
Apr 8, 2005 · CDO and Outlook are both MAPI applications, meaning that they use MAPI APIs to access their data, and therefore, the underlying providers. CDO and Outlook share a common …
Outlook Global Customer Service & Support Team Blog
Aug 12, 2022 · Calendar sharing in Microsoft Outlook is a feature many users rely on daily to manage their manager or team calendars. Microsoft has recently made some big changes to …
Exchange 2013/2019 coexistence and client connectivity to new …
Apr 30, 2023 · Hey all, Some details first: Forest/Domain functional level: 2012 R2 (only one domain) 2 x Exchange 2013 CU 23 Servers in a DAG (both on Server 2012) 1 x Exchange …
New Outlook: MAPI / Exchange | Microsoft Community Hub
May 31, 2024 · I don't think microsoft will ever try to add mapi to it because mapi is a "client side" technology that whereas the new outlook is all server side (excluding the html/css rendering).
Recommendation: Enabling Kerberos Authentication for MAPI …
Apr 15, 2011 · MAPI supports Kerberos authentication and the default setting in Outlook 2007 and later is to negotiate the strongest authentication available when not running in Outlook …
OWA Exchange 2016 Error - Something went wrong | Microsoft …
Hi All, Trying to access to owa and receiving this error: A problem occurred while you were trying to use your mailbox. X-ClientId:...
Client Connectivity in an Exchange 2016 Coexistence Environment …
Oct 28, 2015 · For MAPI/HTTP clients, an Exchange 2013 Client Access server will authenticate the user, do a service discovery, and determine that the mailbox version is 2013 and where …
Primer: Using the MFCMAPI Utility to See Inside Exchange Online ...
Oct 27, 2023 · The MFCMAPI utility is of great help to Microsoft 365 tenant administrators who want to understand the data apps store in Exchange Online mailboxes. An...
Managing Large Shared Mailboxes in Exchange Online – …
May 15, 2025 · The classic Outlook (Win32) client relies on MAPI and old-style caching behavior, which makes it less ideal for fast-paced shared mailbox environments. What we’re now …