Mozilla Thunderbird do not respond.So I do not have access to my emails....

Certification Path:
                                       √DigiCert Global Root G2
                                          √ DigiCert Global G2 TLS RSA SHA256 2020 CA1
                                             x Inbound.att.net (This certification was revoked by its certification authority)

Are you using inbound.att.net and AVG email shield getting the message "Certificate has been revoked" in the details? Where it shows: Certification Path: √DigiCert Global Root G2 √ DigiCert Global G2 TLS RSA SHA256 2020 CA1 x Inbound.att.net (This certification was revoked by its certification authority) Only fix I've managed is turning off AVG email Shield, everything worked fine until Oct 1, 2026 Version 157.0.1 update, this is getting monotonous Thunderbird breaks at least twice a year now making me spend last time 2 weeks trying to figure stuff out hopefully this is a quick fix only 2 days. I remember when Thunderbird was a light weight ad free easy to use emailer same with AVG, now its all bloated with crapware and beginning to not be worth the 5$ a month paid for emailer or worse Yahoo mail only thing left is for TB to start advertising.