Thomas F. 0 Posted November 8, 2023 Share Posted November 8, 2023 Hello. We use ESET Protect and Thunderbird as e-mail clients. Today I wanted to set up a new account I created at Hetzner. I received the following output: The certificate is therefore valid. If I deactivate ESET, no error message appears. As we are now moving all accounts to this provider, I don't want to have to confirm exceptions everywhere. How can I solve this problem? Regards, Thomas Link to comment Share on other sites More sharing options...
Administrators Marcos 5,231 Posted November 8, 2023 Administrators Share Posted November 8, 2023 Do you have this setting enabled? Link to comment Share on other sites More sharing options...
Thomas F. 0 Posted November 9, 2023 Author Share Posted November 9, 2023 Yes Link to comment Share on other sites More sharing options...
Administrators Marcos 5,231 Posted November 9, 2023 Administrators Share Posted November 9, 2023 Please carry on as follows: With Thunderbird closed (make sure its process in not running in Task manager), disable SSL/TLS filtering and click OK to save the changes. Re-enable SSL/TLS filtering. Launch Thunderbird. Should the issue persist, repeat the above procedure but before re-enable SSL/TLS filtering start logging with Procmon. At the end stop logging, save the log unfiltered, compress it and supply me with the archive. Link to comment Share on other sites More sharing options...
Thomas F. 0 Posted November 9, 2023 Author Share Posted November 9, 2023 40 minutes ago, Marcos said: Please carry on as follows: With Thunderbird closed (make sure its process in not running in Task manager), disable SSL/TLS filtering and click OK to save the changes. Re-enable SSL/TLS filtering. Launch Thunderbird. That worked! Now, please tell me why. Is it enough to switch the setting in the policy off and on again? Link to comment Share on other sites More sharing options...
Administrators Solution Marcos 5,231 Posted November 9, 2023 Administrators Solution Share Posted November 9, 2023 Re-enabling SSL/TLS filtering will trigger import of the root certificate into supported email clients. It could be that Thunderbird was installed after ESET. Link to comment Share on other sites More sharing options...
Thomas F. 0 Posted November 9, 2023 Author Share Posted November 9, 2023 Thanks, Marcos. Link to comment Share on other sites More sharing options...
dimbouk 0 Posted January 6 Share Posted January 6 (edited) Hi, It did not solve the problem for me. I reverted all firewall rules to default values bcause it was blocing programs that it should not. After that, Thunderbird is not allowed. firewall is set to interactive mode and there is no rule to block it. I did the re-enabling od SSL certificates but no luck. Any ideas? Edited January 6 by dimbouk Link to comment Share on other sites More sharing options...
Administrators Marcos 5,231 Posted January 6 Administrators Share Posted January 6 What error are you getting in Thunderbird? Does pausing the ESET firewall or temporarily disabling the network traffic scanner in the advanced setup make a difference? Link to comment Share on other sites More sharing options...
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