.NET e-mail library with full support for IMAP, POP3, and SMTP. Provides S/MIME message signing, encryption, and decryption to foster better e-mail security and privacy.
Follows IETF standards, implementing all IMAP4rev1, POP3, SMTP, and S/MIME 3.2 commands plus common extensions such as IDLE. Supports MIME, Unicode, and TNEF encoding.
Includes a fully-featured test client that allows browsing and searching of IMAP and POP3 messages as well as sending of SMTP messages with encryption. Automatically embeds images into Text/HTML messages and strips Script tags.
Inherits from System.Net.Mail.MailMessage and System.Net.Mail.SmtpClient for simplified upgrades of existing code. Implements .NET 4.5 async and await.
Thoroughly documented. Optimized for security, usability, and performance.
Supporting documentation and tutorials available at (http://opaquemail.org/library/).
Licensed according to the MIT License (http://mit-license.org/).
Created by Bert Johnson (http://bertjohnson.net/) of Bkip Inc. (http://bkip.com/).
SMTP proxy and message transfer agent (MTA) to add or remove S/MIME message signing, encryption, and authentication for outbound messages. Can operate in passthrough mode or augment messages to add or filter headers.
Also serve as a passthrough IMAP and POP3 proxy to import S/MIME certificates, filter IPs, or export messages.
Simplifies e-mail protection for Outlook, Thunderbird, Windows Live Mail, Opera Mail, and other e-mail clients.
Can be used to secure and authenticate e-mail programs that connect to SMTP servers anonymously (e.g. SharePoint).
Runs as a Windows service. Inbound and outbound IPs, ports, logging, and TLS / SSL settings are all configurable via XML.
Supporting documentation and tutorials available at (http://opaquemail.org/proxy/).
Licensed according to the MIT License (http://mit-license.org/).
Created by Bert Johnson (http://bertjohnson.net/) of Bkip Inc. (http://bkip.com/).
Copyright © 2013-2014 Bert Johnson
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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