Office 365 (Thunderbird) - Edit/Delete a contact

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?.

Add personal information such as birthdate to a contact or delete a contact from your address book.

Important: The contacts you manage within Thunderbird are not saved to your Office 365 account. They can only be used within Thunderbird. Plus, any contacts you have created using a client that is connected via Exchange/Active Sync (Outlook | Apple Mail | Outlook Web App) cannot be accessed via Thunderbird.

  1. Open Thunderbird
  2. Select Address Book

    address book selection

  3. On the left side of the Address Book window, there is a list of Address Books, these will include your Personal Address Book, your Collected Addresses book and other linked address books such as Mac OS X Address book on a Mac.

    Address book selection

  4. Highlight the Address Book with the contact you wish to edit/delete
To edit To delete
Turn off Collected Addresses
Thunderbird automatically adds every address you email to the Collected Addresses book. To turn this feature off, follow the steps below.
  1. Open Thunderbird
  2. Click on the three horizontal lines next to the search bar to open the drop down menu

    Dropdown button

  3. Select Options (On a Mac, Select Preferences).
  4. From the top tabs, select Composition
  5. In the Composition Tab, select Addressing

    addressing menu selection

  6. Uncheck the box next to Automatically add outgoing email addresses 

    check box to disable automatically adding outgoing email address

  7. Close the box