Various projects that implements encryption of SMTP traffic.
- Secure my email introduction to email encryption using OpenPGP.
- EnigMail is a plugin to bring OpenPGP to Mozilla Thunderbird.
- SKS-keyservers.net provides services for the SKS keyservers used by OpenPGP.
- STARTTLS Everywhere implements encryption of SMTP traffic using the STARTTLS mechanism, in a more secure fashion than the reference implementation.
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