I use Thuderbirdwith 4 different accounts. I configured Avast changing the avast.ini file as indicated and changed thunderbird account configuration to work with avast. Nou 3 account works correctly, but one of them cannot receive mail (sending is OK). When i try to get mail I get a messagebox saying "Sending of username did not succeded. Mail server 127.0.0.1 responded: Unknown command: AUTH PLAIN".
Can anyone help me to solve this?