Thunderbird email client mails blocked by popup. I cannot access mails on Tbird because a pop-up appears saying I am about to alter how Tbird identifies this site. I have more than 10 accounts set up via my BlueHost Hosting system.The same popup occurs for all of them. I can access all the mails using web mail rather than the Tbird client. I haven't any other client systems to access the mails.
The system has Spanish language and I attach a screen grab. The translation is: You are about to alter how Tbird identifies this site. It gives the server address mail.domainname.es:143
State of certificate
- This site is trying to identify itself with invalid information
The popup invites to accept security exception. If I press this it pops up again with a different domain name,
I have Avast Internet Security installed. If I look in detail Avast protections appear in what it calls Basic Shields.
Details of certificates:
Certificate of Server SSL
Domain Control Validated
avast! Web/Mail Shield Root
generated by avast! antivirus for SSL/TLS scanning
It is beginning to look as if Avast is guilty overall. What would recommended cure be please?