By default, MAPI access to a user mailbox is enabled. Enable or disable Outlook on the web access to mailboxes in Exchange Server. You need to be assigned permissions before you can perform this procedure or procedures.
To see what permissions you need, see the "Client Access user settings" entry in the Clients and mobile devices permissions topic. For information about keyboard shortcuts that may apply to the procedures in this topic, see Keyboard shortcuts in the Exchange admin center.
Having problems? Ask for help in the Exchange forums. Click Search and enter part of the user's name, email address, or alias. Once you've found the mailbox that you want to modify, select it, and then click Edit. In the list of mailboxes, select multiple mailboxes of the same type for example, User from the list.
For example:. Select a mailbox, hold down the Shift key, and select another mailbox that's farther down in the list.
Outlook MAPI Reference
After you select multiple mailboxes of the same type, the title of the details pane changes to Bulk Edit. Use the OrganizationalUnit parameter to filter the mailboxes by organizational unit OU. For more information, see Filterable Properties for the -Filter Parameter. Use a text file to specify the mailboxes. The text file contains one mailbox email address, name, or other unique identifier on each line like this:. For detailed syntax and parameter information, see Get-Mailbox and Get-User.
To verify that you've successfully enabled or disabled MAPI access to a mailbox, do any of these steps:. Use the same filter that you used to identify the mailboxes, but use the Get-CasMailbox cmdlet instead of Set-CasMailbox. In the Exchange Management Shell, run this command to show all mailboxes where Outlook on the web access is disabled:.
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Regardless of whether you're using Microsoft Outlook or Outlook for Windows, setting up an account is exactly the same. However, there are a few pre-requisites you'll want to follow prior to attempting to set up your MAPI account in Outlook:.
Once you've made sure the above is set up properly, you can add your account in Outlook. To do this:. This is primarily due to how ingrained Outlook for Windows is in the Microsoft ecosystem, Office in particular.
Enable or disable MAPI for a mailbox
We worked long and hard to try and avoid any possible roadblocks, but there are some that even Microsoft can't help resolve. So, below are some potential issues you may run into, and the steps we've found that can help work around those issues. When using autodiscover, I'm prompted with a Microsoft Office login window as opposed to a Windows Security modal.
This is probably because the domain you're using either was on Office in the past, but isn't now, or you're using Office for the online productivity suite, but not the Exchange portion. As such, Microsoft has cached the domain in its internal systems and is therefore defaulting to Office when doing its own lookups. If you're running something like Fiddler when you're trying to connect your account, you'll notice that, regardless of the domain being used, Microsoft pings it's own systems first before moving on to any autodiscover or other DNS lookups during the account set up process.
If it finds your domain in its cache, it assumes you're trying to connect to Office, so it prompts you for your Office login credentials. This opens in a small browser window whereas the Windows Security modal is an actual system modal. To get around this, you can try one of the following:. Was this article helpful? Yes No.
Thanks for your feedback How can this article be improved? Cancel Submit. Other Social Networks. Email Address. Cancel Send Reset Email. Remember Me. Close Login. You must be logged in to perform this action.MAPI Messaging Application Program Interface is a Microsoft Windows program interface that enables you to send e-mail from within a Windows application and attach the document you are working on to the e-mail note.
Applications that take advantage of MAPI include word processors, spreadsheets, and graphics applications. Selecting one of these sends a request to a MAPI server. Eudora, one of the most popular e-mail programs, includes a MAPI server.
Microsoft Exchange and possibly some other programs may require that you turn the MAPI server off when they are in use. Please check the box if you want to proceed. Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.
A compliance framework is a structured set of guidelines that details an organization's processes for maintaining accordance with Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business Single sign-on SSO is a session and user authentication service that permits a user to use one set of login credentials -- for Remote access is the ability for an authorized person to access a computer or a network from a geographical distance through a Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United Medical practice management MPM software is a collection of computerized services used by healthcare professionals and A crisis management plan CMP outlines how to respond to a critical situation that would negatively affect an organization's A business continuity plan BCP is a document that consists of the critical information an organization needs to continue A kilobyte KB or Kbyte is a unit of measurement for computer memory or data storage used by mathematics and computer science Virtual memory is a memory management capability of an operating system OS that uses hardware and software to allow a computer This was last updated in September Related Terms cloud telephony cloud calling Cloud telephony, also known as cloud calling, is a type of unified communications as a service UCaaS that offers voice Login Forgot your password?
Forgot your password? No problem! Submit your e-mail address below. We'll send you an email containing your password. Your password has been sent to:. Please create a username to comment. Microsoft Windows provides messaging functions sending receiving addresses along with storing messages. Powered by:. Search Compliance risk management Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.
Search Health IT telemedicine telehealth Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the Project Nightingale Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the UnitedGSX provides Robot Users that perform end-user experience tests as well as network latency checks.
Their actions aim at collecting metrics about the end-user experience and the underlying network. Theses end-user scenarios are specific to each suite of Office services. In this article, we will only speak about Microsoft Exchange. This dashboard gathers several days of these metrics. First, we looked at the open mailbox that performs a full auto discover to retrieve all the different settings, connect to that mailbox and authenticate to access the mailbox.
Therefore, our tests simulate multiple scenarios with the GSX Robot Users to assure the most accurate results. We expected to see better overall performance with MAPI as the protocol can better reconnect to a session.
Indeed, we see this with the Open Mailbox. How can we explain this discrepancy? First, it needs to be understood that we are looking at the raw protocol performance in a very static configuration.
This means that these scenarios are run on virtual machines that are not being disconnected from the network, not running on wireless, and not suffering from any problems that could arise when working at home or at a cafe. Secondly, no matter the performance, it is important to consider their stability. On the right side of the dashboard you can see some statistics calculations Variance and Standard Deviation that provide some insight about the stability of performances.
To sum up these findings, MAPI brings more stability and speed when connecting to the mailbox, but does not necessarily improve performance for other daily actions that are performed by an Outlook client. On the performance side, we saw surprisingly contrasting sets of results. The time taken for connections and other actions varied a lot. Depending on the timeframe we analyzed, sometime it seemed as if RPC was faster when initiating the connection to the mailbox and slower on the other actions, while sometimes MAPI seemed to have a better performance….
However, we can confirm the former conclusion that MAPI is much more stable by checking the statistics calculations on the right side of the dashboard. For this test we set up different network environments with packet loss, latency, throttling, packet duplication, and packets out of order, to see how the protocol would respond. The purpose was to simulate realistic situations that could happen in the everyday life of a company with multiple remote locations and people working from home or on the road.
The connection time was always slower for RPC. In order to find a solution, we started to take down a router for about 2 second out of every 6, and then we put a proxy server in the middle that was throwing away packets.
When we looked at the 2 Robot Users in Philadelphia and isolated the amount of data coming out, we saw that there were definitely fewer TCP sessions established, but that they also were sending large amounts of data when compared to the RPC protocol, occasionally even twice as much data volume. Despite these interesting results, it was expected to be the contrary, as MAPI is supposed to be a thinner protocol. The shift to MAPI is already in motion. As usual, before implementing any change in your environment, you need to do some careful planning.
MAPI is intended to provide a better connection and reconnection to the mailbox, which is what we found while running our tests. It has not been designed to improve the performance of every action you can perform with an Outlook client in your day-to-day life.
You should check the impact of this new protocol on your end-user experience before rolling it out.Skip to main content. Note, the actual problem you experience with the custom solution depends on how it uses the Outlook. This problem can occur if Outlook.
The following figure shows the correct Outlook.
MAPI (Messaging Application Program Interface)
To resolve this problem, repair your installation of Office using the following steps: Windows 7 or Windows Vista Exit Outlook. Click Startand then click Control Panel. Then, click Programs and Features. In the list of installed products, select your Microsoft Office product and then click Change.
Click Repairand then click Continue. Windows XP Exit outlook. On the Start menu, point to Settingsand then click Control Panel. In the list of currently installed programs, select your Microsoft Office product and then click Change.
Click Repair, and then click Continue. Australia - English. Bosna i Hercegovina - Hrvatski. Canada - English. Crna Gora - Srpski. Danmark - Dansk. Deutschland - Deutsch. Eesti - Eesti. Hrvatska - Hrvatski. India - English. Indonesia Bahasa - Bahasa. Ireland - English. Italia - Italiano. Malaysia - English. Nederland - Nederlands. New Zealand - English.
Philippines - English. Polska - Polski. Schweiz - Deutsch. Singapore - English. South Africa - English. Srbija - Srpski. Suomi - Suomi. Sverige - Svenska. United Kingdom - English. United States - English.However, the mailbox will continue to receive email messages, and, assuming that the mailbox is enabled to support access by those clients, a user can access the mailbox to send and receive email by using Outlook on the web formerly known as Outlook Web Appa POP email client, or an IMAP client.
For additional management tasks related to managing email client access to a mailbox, see the following topics:. Enable or disable Outlook on the web for a mailbox. You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Client Access user settings" entry in the Clients and Mobile Devices Permissions topic. For information about keyboard shortcuts that may apply to the procedures in this topic, see Keyboard shortcuts for the Exchange admin center.
Set Up a MAPI Account in Outlook 2016 or 2019 for Windows
Ask for help in the Exchange forums. In the list of user mailboxes, click the mailbox that you want to enable or disable MAPI, and then click Edit. To verify that you've successfully enabled or disabled MAPI for a user mailbox, do one of the following:. You may also leave feedback directly on GitHub. Skip to main content. Exit focus mode. Tip Having problems? Is this page helpful?
Yes No. Any additional feedback? Skip Submit. Send feedback about This product This page. This page. Submit feedback. There are no open issues. View on GitHub.This allows a higher level of visibility of transport errors and enhanced recoverability. Additional functionality includes support for an explicit pause-and-resume function.
This enables supported clients to change networks or resume from hibernation while maintaining the same server context. Provides faster reconnection times after a communications break because only TCP connections not RPC connections need to be rebuilt.
Examples of a communication break include:. Offers a session context that is not dependent on the connection. The server maintains the session context for a configurable period of time, even if the user changes networks. NET Framework 4. Note that this is no longer an issue for Exchange CU5 or later. For more information about the. NET Framework versions for Exchange You may also leave feedback directly on GitHub.
Skip to main content. Exit focus mode. Examples of a communication break include: Device hibernation Changing from a wired network to a wireless or cellular network Offers a session context that is not dependent on the connection.
Supported Outlook clients see the table in the previous section. Related Articles Is this page helpful? Yes No. Any additional feedback? Skip Submit. Send feedback about This product This page. This page. Submit feedback. There are no open issues. View on GitHub. Is this page helpful? Upgrading from an environment that contains any Exchange servers.