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Configuring Thunderbird IMAP for the Andrew Google mail service

Enabling IMAP access

Before using Thunderbird (or any other IMAP client) with the Andrew Google mail service, you must first enable IMAP access for your account. This is not enabled by default.

Step 1: Create a G Suite Password

Step 2: Enable IMAP

Before configuring your email client, enable IMAP following the instructions below:

  1. Sign into G Suite @ CMU web app.
  2. Click the gear icon (top right).
  3. Select Settings.
  4. Click Forwarding and POP/IMAP.
  5. Select Enable IMAP.
  6. Click Save Changes.

Step 3: Allow Less Secure Apps

Providing Your Account Information

When starting up without any settings, Thunderbird will first ask you for three pieces of information:

  • Your Name (this is how your name will appear on outgoing messages)
  • Email address (this is the address you give to others so they can send you mail)
  • Password (this is your G-Suite / Google Apps password)

If you like, you may have Thunderbird remember your password for you by checking Remember Password. This is convenient, but less secure; if you are using a machine that you share with other people, you should uncheck this box.

Once you have filled in the requested information, click "continue."

Client Configuration

Thunderbird will attempt to automatically configure itself for use with the Andrew mail environment. At this time, this does not detect the correct mail server settings.

Click on "Manual Config" and configure Thunderbird as follows.

Server Settings

Thunderbird will now show server settings for Incoming and Outgoing servers. These settings should configured as follows:

Thunderbird Settings for the SCS mail environment
TypeServer hostnamePortSSLAuthentication Password Password

Like this:

Thunderbird should automatically fill in the Username field with your username. If it does not, make user that the username is

Once all of the settings in dialog box match the settings listed above, click the "Create Account" button.

To configure your mail account to send as your CS.CMU.EDU address, please see this page.

Setting Thunderbird as the Default Client

Thunderbird may ask you if you would like to set Thunderbird to be your computer's default client for mail, news, and RSS feeds.

This will configure your system to open mail links automatically in Thunderbird. Unless you would rather keep another mailer as your default, it is okay to accept the defaults.

Once you have made your selection, click the "OK" button.

Next Steps

Thunderbird is now configured. You can now start using Thunderbird to read and send mail.

For more information on how to use Thunderbird, the Mozilla Foundation provides extensive documentation and community-powered support to answer questions.

We're also happy to help; if you have any questions about how to use Thunderbird, please contact us at the SCS Helpdesk:

  • By phone: x8-4231
  • By email:
  • In person: GHC 4201