Microsoft Office Outlook (2007 e Outros) | Free Digital Certificate

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Certificados digitais gratuitos do Comodo, para assinatura digital e encriptação de mensagens de email, usando o protocolo de chaves públicas X.509.

aqui

nota: para activar a encriptação, cada parte tem que enviar um mail assinado à outra. posteriormente, deve-se adicionar o remetente aos contactos, guardar, e clicar para actualizar o contacto, no caso deste já existir.

Nota:
Recomendo utilizador o Internet Explorer para todo o processo, desde a abertura do site, passando pelo pedido de registo, até à instalação do certificado digital.
Depois basta ir ao trust center do Outlook e em "Email Security" clicar em "Settings" e já aparece lá o certificado.
Este ano a assinatura digital começou a falar e tive de fazer novamente o certificado, pelo que deve ser válido por apenas um ano.

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