How to set a self-signed certificate in Mozilla Thunderbird as trustworthy
If you use self-signed certificates in Kerio Connect, users with Mozilla Thunderbird may experience problems with secure authentication from a directory service (LDAPs protocol).
If this is your case, create an exceptions for your self-signed certificate in the application.
- In Mozilla Thunderbird, go to Tools > Options > Advanced > tab Certificates.
- Click on View Certificates and go to tab Servers.
- Click on Add Exception.
- Enter the name of your mail server and click on Get Certificate.
IMPORTANT
Do not forget to use the port number of the mail server.
Example: mail.company.com:636.
- Save the exception.
NOTE
We recommend to check the option for permanent storage of the exception.
Your self-signed certificate is now considered as trustworthy by Mozilla Thunderbird.
Server certificate is not available
If your Thunderbird has a problem acquiring the server certificate, follow these steps:
- In Mozilla Thunderbird, go to Tools > Options > Composition > tab Addressing.
- Check the Directory Server option and click on Edit Directories > Add.
- Enter the necessary information a check Use secure connection (SSL). Confirm the dialog.
- In the list of directory service servers, select the one you have just created a open it.
- On tab Offline, click on Download Now.
- Save the settings.
- Now you can add the exception as mentioned above.
