Hi - I have had gmail and my internet provider email accounts on Thunderbird working for years. Suddenly, a few days ago, I started getting certificate issues from Thunderbird warning me of the security risks. I chose to override. Now I am unable to download (imap) from either email server. I no longer receive the certificate risk dialog box. When I click on File>Get New Messages, message appear at the bottom of the page indicating Thunderbird is "connecting to the imap server" or "checking mail server capabilities", but nothing downloads. What do I need to do to correct this? Access to both servers stopped at the same time so I don't believe anything changed on the server end.

Thanks, Alan