starttls topic

Transparent SSL/TLS interception

droe

An Internet scale, blazing fast SSL/TLS scanner ( non-blocking, event-driven )

prbinu

Scan domains and return data based on trustworthy email best practices

cisagov

proxy poc implementation of STARTTLS stripping attacks

tintinweb

Internet standards compliance test suite

internetstandards

The highly customizable ruby SMTP-Server and SMTP-Service library with builtin support for AUTH and SSL/STARTTLS, 8BITMIME and SMTPUTF8, IPv4 and IPv6 and additional features.

4commerce-technologies-AG

Check expiry dates of local and remote SSL certificates

raimue

:hammer_and_wrench: Proof-of-concept code for Heartbleed a.k.a. CVE2014-0160 with STARTTLS support for various protocols

decal

📩 Template to host an MTA Strict Transport Security (MTA-STS) policy on GitHub Pages.

jpawlowski

A minimalist client for sending mail direct to recipient's MX

richfelker