Working with an end-user who has 2 365 mailboxes in Thunderbird using IMAP, but after repeated configurations and removal/readdition of accounts, are still met with the following error notification: "The current operation did not succeed. The mail server for account xxxxxxxx responded: User is authenticated but not connected." Thunderbird is up-to-date on version 102.6.1(64-bit). We have connected the accounts using default settings for IMAP and 365 mailboxes. It did work for a short period of time, then stopped syncing and producing error. We have disabled security defaults in Exchange Admin Center, and MFA is disabled as well. Any help would be appreciated.