Office 365, Email, Exchange, Thunderbird

This page contains information about how to connect to the Exchange email and calendar service using Thunderbird.

Getting started

Thunderbird is available for several operating systems from (external link).

After downloading and installing it, follow these directions to configure Thunderbird to get your email from the Exchange system.

Configure Thunderbird for Email

  1. In the Mail Account Setup window, enter:

    Your name: Last name, First name (i.e. Smith, John)
    Email address:
    Password: Your AD password
    Remember password: (optional, your choice)

  2. Click Continue.

  3. The incoming address for Exchange 2010/2013 mailboxes is: via STARTTLS on port 143 with Normal Password Authentication
    The incoming address for Exchange Online (Office 365) mailboxes is: via TLS on port 143

  4. After your account has been created, go to the Tools menu and click Account Settings.

    Under your account settings, click Outgoing Server (SMTP), then Edit.Change the settings to match these:

    Description: SMTP-Illinois
    Server Name
    : for Exchange 2010/2013 mailboxes
    Server Name: for Exchange Online (Office 365) mailboxes
    Connection Security:
    Authentication Method:
    Normal Password
    User Name:

  5. Click OK.

  6. Thunderbird is now configured to connect to Exchange.

Request authorization from the Help Desk

If you are a new Thunderbird user, you must request authorization to use SMTP to send email.

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 Thunderbird. 

Keywords:Exchange, email, calendar, Thunderbird, IMAP, SMTP, SMTP-Illinois, STARTTLS, Exchange, migrations, office 365, email   Doc ID:47659
Owner:Office 3.Group:University of Illinois Technology Services
Created:2015-02-26 11:10 CSTUpdated:2018-10-17 10:24 CST
Sites:University of Illinois Technology Services
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