Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

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

Tëj nañu waxtaan wii ba denc ko. Yónneel yeneen laaj soo soxlaa ndimbal.

Thunderbird Signing Certificate Problem

  • 1 tontu
  • 1 am na jafe-jafe bii
  • 111 views
  • i mujjee tontu mooy Matt

When I upgraded to Thunderbird version 91, I can no longer receive encrypted e-mails. The error message says that the e-mail does not contain a digital signature. However, when I view the e-mail using Outlook it clearly does have a valid digital signature. I tried sending a signed and encrypted e-mail to myself and others, and everyone else received it but I cannot read it because it says it does not have a digital signature. It worked fine before this recent upgrade.

When I upgraded to Thunderbird version 91, I can no longer receive encrypted e-mails. The error message says that the e-mail does not contain a digital signature. However, when I view the e-mail using Outlook it clearly does have a valid digital signature. I tried sending a signed and encrypted e-mail to myself and others, and everyone else received it but I cannot read it because it says it does not have a digital signature. It worked fine before this recent upgrade.

All Replies (2)

Encrypted how? are you using the PGP implementation or s.mime the more mainstream of the two, but apparently the poor sheep these days.

This question has been locked because the original author has deleted their account. While you can no longer post new replies, the existing content remains available for reference.