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    f1910cbe
    Mail server support for Opportunistic TLS. · f1910cbe
    deuce authored
    Support STARTTLS in SMTP and STLS in POP3.  This includes the sendmail
    thread.  Clients can now be configured to use STARTTLS with Synchronet
    mail services, and Synchronet will attempt to deliver securely when
    possible (though it will fall back to plain text delivery when necessary.)
    
    This touches a *lot* of mail server stuff, so some instability is not
    unlikely.
    
    Of course, RFC8314 (Jan, 2018) officially recommends implicit TLS on the TLS
    ports now, so support for that should be next.
    f1910cbe
    History
    Mail server support for Opportunistic TLS.
    deuce authored
    Support STARTTLS in SMTP and STLS in POP3.  This includes the sendmail
    thread.  Clients can now be configured to use STARTTLS with Synchronet
    mail services, and Synchronet will attempt to deliver securely when
    possible (though it will fall back to plain text delivery when necessary.)
    
    This touches a *lot* of mail server stuff, so some instability is not
    unlikely.
    
    Of course, RFC8314 (Jan, 2018) officially recommends implicit TLS on the TLS
    ports now, so support for that should be next.
mailsrvr.h 9.61 KiB