After Tbird did its update to Ver 146.2.1 ESR (32 bit), I cannot receive nor send email from 1 of my 3 accounts. Of course, that is my main account. Murphy's law. When I click on "get messages" it takes a long time, cycles through all accounts, then freezes, not always at same point. I can see all my not yet downloaded email on Yahoo. Sometimes the error msg is "password" and I changed that. Sometimes the msg relates to SMTP. But my settings seem OK. I did the usual, rebooted Tbird, rebooted the PC, Tbird troubleshooting was of no use either. Any ideas???? jgb