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Oct 12, 2018 - Incoming Mail Server (IMAP), outlook.office365.com, SSL, Required, 993. Using IMAP to connect to your Office 365 Exchange Online mailbox. *These settings are provided as a courtesy and may or may not be all that's. Exchange accounts - See the section, Find your Exchange mailbox server settings or ask your IT admin for your server information. Office 365 work or school accounts - Use outlook.office365.com.
This page provides links to documentation on how to configure your email client to access Office 365. You can set your email client to access your Office 365 account using either Exchange or Internet Message Access Protocol (IMAP) settings.
Exchange Versus IMAP
There are several advantages to setting up your email client to use Exchange rather than IMAP settings. Exchange only requires that you provide your email address and password for set up; IMAP, however, requires additional server information. Exchange also provides direct access to the USC calendar that is a part of your Office 365 account.
At this time, ITS supports both methods of setting up your account.
Setting Up an Office 365 Account Using Exchange
For documentation on setting up your Office 365 account on an email client using Exchange, please see the links in the side navigation to the right of this page.
NOTE: The versions of Outlook that are listed below are the only versions that are supported by Microsoft for use with Office 365.
Outlook 2016
Outlook 2016 for Mac
Outlook 2010 SP2, version 14.0.7015.1000 (and greater)
Outlook 2013 SP1, version 15.0.4569.1506 (and greater)
Outlook 2016 for Mac
Outlook 2010 SP2, version 14.0.7015.1000 (and greater)
Outlook 2013 SP1, version 15.0.4569.1506 (and greater)
To determine which version of Outlook you are using, please see Microsoft’s How to determine Outlook version information page.
Setting Up an Office 365 Account Using IMAP
Below you will find information on configuring ITS-supported email clients to access your Office 365 account using IMAP. You will need to know your Office 365 email address, password, and the Office 365 server settings in order to successfully set up your email client.
IMAP Server Settings
The following are the incoming and outgoing IMAP server settings for Office 365.
Setting | IMAP (incoming) | SMTP (outgoing) |
Server Name | outlook.office365.com | smtp.office365.com |
Port Number | 993 | 587 |
Encryption Method | SSL | TLS |
The following Microsoft links provide step-by-step information on how to connect your email client to Office 365 using the IMAP protocol.
NOTE: The versions of Outlook that are listed below are the only versions that are supported by Microsoft for use with Office 365.
Outlook 2010 SP2, version 14.0.7015.1000 (and greater)
Outlook 2013 SP1, version 15.0.4569.1506 (and greater)
Outlook 2016
Outlook 2016 for Mac
Outlook 2013 SP1, version 15.0.4569.1506 (and greater)
Outlook 2016
Outlook 2016 for Mac
To determine which version of Outlook you are using, please see Microsoft’s How to determine Outlook version information page.
Getting Help
For assistance configuring your email client for Office 365, please contact the ITS Customer Support Center.