Trustedbird郵件客戶端

Trustedbird 是一個基于 Thunderbird 的開源郵件客戶端軟件。

提供的擴展功能包括：

• Enhanced Security Services for S/MIME (RFC 2634)
  • Triple Wrapping: sign, encrypt, and sign again a message.
  • Signed Receipts
  • Security Labels
• DSN (Delivery Status Notification) ? the backend is now integrated in Mozilla Thunderbird 3.
• SMTP PRIORITY extension
• Secure Headers
• SASL EXTERNAL