Michael Gunner
asked on
Unable to use Thunderbird
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
Emited by
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?
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
Emited by
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?
Uninstall Avast Internet Security, restart computer and try again.
ASKER
Thank you. Your opinion backs up what I had thought. I am in the process of doing the uninstall (which is more complicated than I thought).
Apparently, Avast became a certificate authority service in 2016 and your host is on a long list of places that Avast is not happy with. If uninstalling doesn't fix it, read this article on how to add an exception for your mail server:
https://support.mozilla.org/en-US/kb/add-security-exception
https://support.mozilla.org/en-US/kb/add-security-exception
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ASKER
I uninstalled Avast and unfortunately the problem remains with Thunderbird. I will look at the other steps suggested here but it will take me some time because I need mail and have to use a web mail which is cumbersome. I will not close the question as I have no answer that works yet. Thank you for your help.,
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ASKER
There were other things suggested to try but I thought I really should remove a persistaent error which I thought was unrelated. Now it all workd but if th eproblem comes back I still have a couple of things to try which hve been suggested here. Many thanks