Securely send,receive,preview,edit,sign/verify,and encrypt/decrypt email msg.
Edit by : PowerTCP Mail for .NET Product Features
A set of .NET components that seamlessly combine security, efficiency, and ease of use for quickly developing a wide range of email-handling .NET applications.

Send, receive and manage email with standard protocols
SMTP and POP3 components for sending and receiving email
IMAP4 component for securely managing messages on any IMAP4 server, including GMail
MIME and S/MIME for encoding and decoding binary data such as images and applications in messages
Mail for .NETs protocol support Details >

Integrate security in email-handling applications
S/MIME encoder and decoder for full message security
SSL2, SSL3, PCT, TLS support for stream-level security
Client-side and server-side authentication options
X509 certificate management you can free download PowerTCP Mail for .NET 3.0.3.2 now.