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SSL Signature Check (SSLSigcheck) is an email filter designed to be run from within procmail. It will examine the signature and certificate of a signed email, and add header information that procmail recipes can use to filter the message.
Protect your company's email and browsing with your GoodCrypto private server.
* Protects email metadata and resists traffic analysis
* Automatic encryption, decryption, and key management
* All private keys stay on *your* server
* Users don't change their email or browser software
* Blocks web malware
* Runs on your private server
* Completely decentralized
Encrypting, anonymous, unlimited size message transfer system
AleHu is an open source encrypted message transfer system that encompasses both server (PHP) and client software (Java).
Give it a shot: You can try out AleHu by simply running the client using the preconfigured AleHu test server!
For further details and instructions on how to quickly install and run AleHu, have a look at the documentation in the Wiki section.
TMDA is an open source anti-spam system and local mail delivery agent written in 100% pure Python. TMDA combines whitelists, blacklists, a challenge/response system, and special-purpose e-mail addresses called "tagged addresses" to thwart spam.
tkpgp is a gui front-end to the Gnu Privacy Guard PGP implementation. It provides a selection-based channel that enables simple and convenient integration with other applications.
Ruby script framework for the encryption and decryption of email according the GPG/MIME Format (RFC 3156). It can be used for e.g. for Apple' Mail as replacement for GPGMail.
NOTE: dkim-milter has been replaced by OpenDKIM, available at http://opendkim.org/
dkim-milter consists of two parts: A milter-based application (dkim-filter) which plugs in to Sendmail to provide DomainKeys Identified Mail service, and a library (libdkim) which can be used to build DKIM-compliant applications or MTAs.
dk-milter consists of two parts: A milter-based application (dk-filter) which plugs in to Sendmail to provide DomainKeys service, and a library (libdk) which can be used to build DomainKeys-compliant applications or MTAs. See the home page for details.
OSN is an open source open protocol distributed social network. Public key cryptography makes the network resilient to spam. User profiles are based on FOAF XML and users can migrate their profile from one site of the federation to another.
With Tiger Envelopes you can stop snoops from reading your email. Same email client. No extra steps. One click to install on Windows and Linux. Configures Outlook, Thunderbird, and KMail. Supports GPG, PGP, Bouncy Castle encryption.
keystory, by analyzing email history, gathers data on the usage of OpenPGP signatures, and provides information to imperfectly, but practically complement the web of trust, answering questions such as "What keys has foo@bar.baz.com used, where and when?"
pgpenvelope is an interface between Pine and the GNU Privacy Guard (GnuPG). It allows one to perform expected OpenPGP-related operations on messages. Ease of installation, setup, and use are distinguishing features.
anonvelope is a mail-message processing program that is designed to allow the message to make full use of Type-I (cpunk-style) remailers. It is especially designed to work with Pine, but it is possible it may be used with other MUA's.
Originally a software partnership between my best friend and myself, Diverse Developments seeks to write "useful stuff", of a very diverse nature...
Current projects include a file encoder, and a double-entry accounts package.