How to add an Exchange email to Betterbird or Thunderbird in a Linux environment?

Hi @Al Kenyon 

Thank you for reaching out to Microsoft Learn Q&A!    
From your description, I understand you're currently unable to add your Exchange account to Thunderbird or Betterbird. 

As a forum moderator, I’d like to kindly clarify that we do not have access to dedicated testing environments to fully replicate every user scenario, particularly those involving third-party applications like Thunderbird, which is not a primary product supported in this forum, and Linux systems as you mentioned. 

That said, driven by our mission to provide the best support possible, I’ve explored this scenario using the resources available to me in a Windows environment. During my testing, I was able to successfully add an Exchange account to Thunderbird. Although the steps I’m sharing are based on personal experience and not directly tied to Microsoft’s official documentation, I’m happy to assist with the insights I’ve gathered.

Based on both my experience and Thunderbird’s official documentation, I recommend selecting the Exchange type using the EWS server during setup. Please avoid the option labeled Exchange (REQUIRES ADD-ON).

In the meantime, here are some general troubleshooting steps you can try: 

• Remove and re-add the account for a fresh configuration.
• Create a new Thunderbird profile to rule out profile-specific issues. 

For further guidance, you may find these resources helpful: 

• Thunderbird and Exchange | Thunderbird Help 
• Profile Manager - Create and remove Thunderbird profiles | Thunderbird Help 

Note: Microsoft is providing this information as a convenience to you. These sites are not controlled by Microsoft, and Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please ensure that you fully understand the risks before using any suggestions from the above link. 

As mentioned earlier, Thunderbird is not a Microsoft product, so there may be limitations to the support we can offer directly within this forum. For more specialized assistance, especially tailored to your specific environment, I recommend reaching out to Thunderbird’s support team. They may be able to provide deeper insights and solutions.

You're always welcome to continue the conversation with us. I sincerely hope this information partially clarifies your situation and assists you in planning your solution. Please do not hesitate to reply if you have any updates.  

Thank you for your understanding.  

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