Email, Exchange, IMAP Email Access to Exchange

This page contains information about how to connect to the Technology Services Exchange email and calendar service using the IMAP protocol, which is used by some mobile devices and email clients.

Limitations of IMAP

The configuration given below uses the IMAP email protocol rather than the Exchange protocol. This means that many email clients which don't have full Exchange or ActiveSync support can probably connect to the Exchange server using IMAP instead.

Note that IMAP only provides an email connection. You won't receive calendar information through IMAP. However, you can use the web interface at to view your calendar.

Request authorization from the Help Desk

If you are a new IMAP user, you must request authorization to use this service.

Because of a problem with attackers phishing for campus accounts and using the campus mail servers to send spam, the campus mail servers now require an extra layer of approval.

Contact the Help Desk to have your account added to the approved list before sending email via IMAP.

IMAP account settings

Due to the number of different IMAP email clients, it's not possible to provide a menu-by-menu and screen-by-screen set of instructions for configurations. However, once you locate your email client's configuration section, these are the settings you will use.

IMAP Configuration

  • Username: uofi\yournetid or
  • Password: Active Directory password
  • Email address:
  • Incoming mail server for Exchange 2010/2013 mailboxes:
  • Incoming mail server for Office 365 mailboxes:
  • Incoming mail server security: port 143 and TLS (Thunderbird uses STARTTLS)
  • Outgoing mail server for Exchange 2010/2013 mailboxes::
  • Outgoing mail server for Office 365 mailboxes:
  • Outgoing mail server: requires authentication/password
  • Outgoing mail server (SMTP) port: 587
  • Outgoing mail server security: TLS

Keywords:IMAP, Email, Exchange, office 365, exchange online   Doc ID:47615
Owner:Joshua M.Group:University of Illinois Technology Services
Created:2015-02-25 16:25 CSTUpdated:2018-10-01 09:42 CST
Sites:University of Illinois Technology Services
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