Last received email on pop account was on 12/30/2020. Since then, pop emails are not retrieved. Wireshark reveals that a connection is established with the email server. However, Thunderbird doesn't ask for the mail. Eventually, the connection just times out. Changing servers for the same pop email account results in the same sequence, server connection established, no ask for the emails. All other devices receive email from this pop account just fine. So, why is Thunderbird no longer asking for the emails ? Thanks!