Under When sending messages, automatically: select the Other radio button, then in the drop down navigate to the Sent Items folder for your MIT email (note: not a local folder.).

Go to Edit > Account Settings, then go to Copies & Folders under your MIT email account.

To save yourself some confusion and heartache later, you should set Thunderbird to respect this convention. Microsoft however uses the convention 'Sent Items'. Recommended Post Setup Tasks Sent Foldersīy default most IMAP clients will use the 'Sent' folder to save sent email. Make sure to change to Sent folder to Sent Items, and set up calendar and contact syncing! See relevant sections below.

Click Manual Config, then fill in the settings as below.

Thunderbird will try to use old IMAP account settings (see below), but this is WRONG.

Fill in correct name, MIT email, and password, and click Continue.

If not, manually start this process by going to Edit > Account Settings (or hamburger menu > Account Settings), then clicking Account Actions then Add Mail Account.

If this is the first time you are running Thunderbird, you should be greeted by the Add New Account prompt.

If you are unsure, you can check with IS&T. Most users reading this article will have an Exchange 2013 mailbox.

1.4.4 Signing Email with Personal SSL Certificates.

1.4.3 Set Mail Sync to 'Online Only' Mode.

1 Configure Thunderbird for use with MIT Exchange or MIT Office365 Mailboxes.

Thunderbird office 365 exchange