Every time I start up Thunderbird, I receive a "Please verify" message from Google (see screen shot). This message refers to an email account that I deleted because I am no longer authorized to use it ["s***@old****.com]. These requests also turn up regularly if I remain connected. I cannot verify the account because the password has been changed and the verification email is no longer mine. I have 2 other accounts on Thunderbird; one is linked to a private domain; one is an ***@gmail.com account. Both perform correctly; are configured correctly and cause no problems with passwords, etc.. Other evidence: In Box: The s***@old****.com account is not present in the left menu window. When I go to Accounts, Settings: The s***@old****.com account is not listed. When I go to Server Settings (In or Out) there is no trace of the 's***@old****.com' account, although the other two accounts have correct settings in the 'Outgoing' server.. Previosly, this email "s***@old****.com" was also linked to my Google Account. I have deleted it from my Google Account; I have deleted it from Thunderbird as an Account. When I disconnect my Google Accounts: This has no apparent effect on frequency of Verification prompts [I close my Safari browser]. When I Close Thunderbird: The Verification prompts for "s***@old****.com" no longer appear. It seems like Thunderbird is still trying to "Get Messages" from "s***@old****.com" and triggering the Google password protection system (?). IS THERE A WAY TO FIX THIS IN THUNDERBIRD? Thanks, Al