Smtp Auth and Starttls (Chapter 5)

SMTP Service Extension for Authentication RFC

SMTP Service Extension for Secure SMTP over TLS

Stunnel home

Postfix Integration

Security Sage’s SASL2 authentication and TLS encryption guide

Qmail Integration

qmail SMTP AUTH patch

SMTP Authentication [Tutorial]

Sendmail Integration

Claus Aßmann’s Compiling STARTTLS in sendmail

Jon Fullmer’s How to Set Up SMTP AUTH


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