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| English | Chinese |
| Secure/Multipurpose Internet Mail Extensions | 安全多用途網際網路郵件延伸 (An Internet e-mail security-oriented protocol that adds public key encryption and support for digital signatures to the widely used MIME e-mail protocol) |
|
| English | Chinese |
| Secure/Multipurpose Internet Mail Extensions | 安全多用途網際網路郵件延伸 (An Internet e-mail security-oriented protocol that adds public key encryption and support for digital signatures to the widely used MIME e-mail protocol) |