This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Sending problem, self-signed certificate not accepted

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by Toad-Hall

adenabdulaziz
adenabdulaziz
more options

Hello,

I wanted to connect my Protonmail email to Thunderbird, which went successfully. Unfortunately, I cannot send messages as I get the error in the image attached. I have the correct SMTP settings (server: 127.0.0.1, port: 1025) from the Protonmail Bridge app with the correct password, but the message never sends. All other emails are working correctly with Thunderbird. I have also used all troubleshooting and nothing works. Adding security exceptions (as in the attached snapshot) hangs forever and did not even work.

I appreciate your assistance.

Sincerely, Abdulaziz

Hello, I wanted to connect my Protonmail email to Thunderbird, which went successfully. Unfortunately, I cannot send messages as I get the error in the image attached. I have the correct SMTP settings (server: 127.0.0.1, port: 1025) from the Protonmail Bridge app with the correct password, but the message never sends. All other emails are working correctly with Thunderbird. I have also used all troubleshooting and nothing works. Adding security exceptions (as in the attached snapshot) hangs forever and did not even work. I appreciate your assistance. Sincerely, Abdulaziz
Attached screenshots

Modified by adenabdulaziz

All Replies (1)

Toad-Hall
Toad-Hall
  • Top 10 Contributor
more options

If the certificate is ok then select 'Permanently store this exception' checkbox and click on 'Confirm security exception' button.

https://protonmail.com/support/knowledge-base/protonmails-ssl-certificate/

https://support.mozilla.org/en-US/kb/advanced-panel-settings-in-thunderbird#w_certificates-tab