INTRODUCTION

This patch adds UCSPI-TLS support to mailfront's SMTP, POP3, and IMAP
servers.  One implementation of UCSPI-TLS is a patch to ucspi-ssl.  See:

    http://www.suspectclass.com/~sgifford/ucspi-tls/

For more information about UCSPI-TLS, see:

    http://www.suspectclass.com/~sgifford/ucspi-tls/ucspi-tls.txt

UCSPI-TLS is still being hammered out, so if you have feedback please
send it to:

    sgifford@suspectclass.com


USING

* To enable ucspi-TLS, set the UCSPITLS environment variable.

* To refuse all authentication until TLS is negotiated, set the
  AUTH_REQUIRES_TLS environment variable.


CHANGES

* Adds CAPA and STLS support to pop3front-auth

* Adds STARTTLS support to SMTP servers (via smtp-commands.c)

* Adds STARTTLS support to imapfront-auth