Office 365 (Thunderbird) - Modify Message Settings

Best Effort Support Only

This document contains instructions on using a non-Microsoft email client, such as Apple Mail or Thunderbird. Microsoft does not recommend these clients for use with Office 365, and there are often significant limitations in client functionality as a result.

Because of this, the DoIT Help Desk is only able to offer best effort support for these clients, and certain issues may require the use of a Microsoft client in order to be resolved. For more information on Office 365 client support, please see: Office 365 - Which clients/protocols will be supported?.

In Thunderbird there are several settings you can change in messages. Follow the steps below.

  1. Open Thunderbird
  2. Click the Menu button next to the search bar (three horizontal lines)

    menu button

  3. From the drop down menu, select Options (On a Mac, select Preferences).
  4. In the pop up menu, click on the Composition tab

    Composition Tab

  5. From this tab there are three options
  6. In General you can:
  • Select how messages are forwarded
  • Choose how often Thunderbird will save your drafts
  • Choose whether or not you want a confirmation when using a keyboard shortcut to send a message
  • Choose if you want Thunderbird to notify you if an attachment may be missing
  • Set Keywords to watch for missing attachments
  • Change your default text or background color
  • Change the default format of your email
  • In Addressing you can:
    • Choose where Thunderbird looks for emails to autocomplete
    • Turn off Automatically adding emails to Collected Addresses
    • Have automatically added emails entered into an address book other than Collected Addresses
  • In Spelling you can
    • Set Thunderbird to check spelling before sending
    • Turn on or off Enable spell check as you type
    • Change the default language
    • Download additional dictionaries (not tested for Office 365 compatibility) 




    Keywords:microsoft office365 o365 thunderbird message settings emails   Doc ID:39640
    Owner:Leah S.Group:DoIT Help Desk
    Created:2014-04-29 11:30 CDTUpdated:2015-09-11 12:44 CDT
    Sites:DoIT Help Desk, Office 365
    Feedback:  0   0