IMAP is a method of accessing electronic mail that allows multiple computers and mail clients access the same mailbox. For example, email stored on an IMAP server can be manipulated from a desktop computer at home, a workstation at the office, and a notebook computer while traveling, without the need to transfer messages or files back and forth between these computers. This tutorial allows you to connect Apple Mail with your Office 365 accounts using IMAP.

Step 1

Open System Preferences, then click Internet Accounts.

Step 2

On the right, scroll down and click Add Other Account…


Step 3


Click Add a Mail Account, then click Create.


Step 4

Enter your account information:

  • Full Name
  • Email Address: enter your primary email address here (e.g.,
  • Password: enter your Active Directory password

Then click Create.


You may get a message that says “Account must be configured manually.” If you do, click Next.

Step 5


Enter the following Incoming Mail Server information:

  • Account Type: IMAP
  • Mail Server:
  • User Name: enter your
  • Password: enter your username password

Then click Next.


Step 6

Enter the Outgoing Mail Server information:

  • SMTP Server:
  • User Name: enter your
  • Password: enter your username password.

Then click Create.


Step 7


Open Apple Mail and your account will start downloading and processing your mailbox.