
Outlook Connectivity with MAPI over HTTP | Microsoft Community Hub
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 requirements. …
Understanding how Outlook, CDO, MAPI, and Providers work together
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 set of …
Planning considerations for REST-based (aka new model) calendar …
Aug 12, 2022 · The REST Model The new calendar sharing model based on REST is designed to avoid MAPI issues related to conflicting permissions and multiple editing delegates. This is one of the …
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).
Managing Large Shared Mailboxes in Exchange Online – Performance ...
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 considering: Should …
REST instead of MAPI | Microsoft Community Hub
Dec 6, 2018 · REST instead of MAPI At Ignite, the Outlook team said that "coming soon" we'd have the ability (in an Insider version of Outlook) to manually enable the new calendar functionality via a …
Can't empty deleted items folder - Outlook 2016 ... - Microsoft 365
Dec 8, 2018 · Hi Have a problems with Office 365 / Outlook 2016 / Exchange Online Plan 1 I have a service mailbox which has 60000 emails in deleted items folder...
Checklist for Troubleshooting Performance Related issues in Exchange ...
May 31, 2016 · Some of relatively common and difficult issues we see in support are related to client connectivity to Exchange.
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:...
Microsoft Exchange Server MAPI Client and Collaboration Data Objects …
Jun 2, 2008 · Microsoft Exchange Server MAPI Client and Collaboration Data Objects 1.2.1 package for Vista / Windows Server 2008 is now available