Try this: highlight the unified inbox, rightclick, select properties and then click 'choose' to verify if all the accounts are ticked.

Not sure I am seeing what you may think. I have attached a screenshot.

Okay, I agree, there's a problem. Try this: - exit thunderbird - in profile, go to Mail folder and you should see a fold called 'smart mailboxes' Delete it. - restart thunderbird. That should rebuild it and then recheck the previously suggested keystrokes to verify that all accounts are listed under the 'choose' button.

Deleted "smart mailboxes" twice, each with no success. The "choose" window shows the same thing.

Thanks for feedback. Maybe someone else here has ideas.