Use Microsoft Exchange (EWS) accounts in Mail on your Mac

Learn about using Exchange (EWS) accounts in Mail with OS X v10.6 or later.

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Before you begin

  • OS X Snow Leopard and later support Exchange Web Services (EWS) as a connection to your Exchange server. If your Exchange server does not use EWS, check with your Exchange administrator to see if an IMAP connection to the server is available instead.
  • If you're using macOS High Sierra or later, your Exchange server must use Exchange Server 2010 or later with the latest service pack installed.  
  • If you're using macOS Sierra or earlier, your Exchange server must use Exchange Server 2007 or later. With Exchange Server 2007, you must also have Service Pack 1 with Update Rollup 4 or later installed.
  • For best results, make sure that your software is up to date before setting up an Exchange account in Mail.

Add an Exchange (EWS) account to Mail

Follow these steps to add an Exchange account to Mail. You can add as many Exchange (EWS) accounts as you want.

  1. Open Mail.
  2. From the Mail menu, choose Preferences, then click Accounts.
  3. Click the Add button (+) to add an account. 
  4. Select Exchange from the list of account types, then click Continue.
  5. Enter your name, email address, and password, then click Continue.
  6. If Autodiscovery isn't enabled on your Exchange server, you're asked to enter your server address, then click Continue. If you don't know the server address, contact your Exchange administrator.
  7. Features such as contacts and calendars can also be used with Exchange. Select the options you want to use, then click Continue. 
  8. In earlier versions of macOS, a summary sheet appears when you complete setup. If the summary is correct, click Create. If you need to make changes, click Go Back. Select "Take account online" to start using the Exchange account.

If new messages don't appear in your Exchange mailbox

  1. If certificate authentication is enabled on the mail server, make sure that your mailbox has no more than 11,000 messages. Microsoft recommends no more than 5000 messages per Exchange mailbox.
  2. If that isn't the issue, quit Mail, then open it again and don't select any other mailbox while Mail gets new messages. To be sure that Mail has finished downloading and indexing new messages, you can choose Window > Activity, then watch the progress of the download.

If you can't send messages from your Exchange account when SSL enabled

The SSL port setting in Mail preferences may be incorrect for your Exchange account. Check with your Exchange administrator for the correct SSL port setting.

If you can't send or receive email or connect to the Exchange server after upgrading your Mac operating system

OS X Mountain Lion v10.8 and later use the Exchange Autodiscover service, which allows Mail to automatically get setup information from the Exchange server. If your Exchange server isn't providing the needed setup information, contact your Exchange administrator.

If necessary, you can turn off Autodiscover:

  1. Choose Mail > Preferences and go to the Accounts pane.
  2. Select your Exchange account from the list of accounts.
  3. Click the Server Settings tab.
  4. Deselect the "Automatically manage connection settings" checkbox. 

You can then enter the internal and external server information manually.

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