Sometimes emails are received as .txt files or become unreadable due to corruption in the Outlook data file.
: Synchronization often resumes automatically after your OAuth token expires, which usually happens one hour after a password change. gmailcom yahoocom hotmailcom aolcom txt 2019 fix
A known bug has previously caused synchronization failures for Gmail and Yahoo users in classic Outlook clients, including Outlook 2019. If your account has stopped syncing and no longer prompts you to sign in: Sometimes emails are received as