Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Pesquisar no apoio

Evite burlas no apoio. Nunca iremos solicitar que telefone ou envie uma mensagem de texto para um número de telefone ou que partilhe informações pessoais. Por favor, reporte atividades suspeitas utilizando a opção "Reportar abuso".

Saber mais

Esta discussão foi arquivada. Se precisar de ajuda, por favor, coloque uma nova questão.

Why? 'Secure connection failed live.mozillamessaging.com uses an invalid security certificate On windows 7

  • 1 resposta
  • 27 têm este problema
  • 213 visualizações
  • Última resposta por christ1
  • Arquivadas

Martin100
Martin100

Secure connection failed

live.mozillamessaging.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer) 

   This could be a problem with the server's configuration, or it could be someone trying to impersonate the server.
   If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.

Or you can add an exception… (THIS LINK DOES NOT WORK)

Secure connection failed live.mozillamessaging.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer) This could be a problem with the server's configuration, or it could be someone trying to impersonate the server. If you have connected to this server successfully in the past, the error may be temporary, and you can try again later. Or you can add an exception… (THIS LINK DOES NOT WORK)

Todas as respostas (1)

christ1
christ1
  • Top 25 Contributor
  • Moderator

What is your Thunderbird version?