A.5.2 Delayed encrypted bridge

To first exchange greetings, then send STARTTLS and finally build the encrypted bridge, we do:

openssl s_client -quiet -starttls smtp \
    -connect smtp.gmail.com:587

then we start the SMTP dialogue as outlined in Immediate encrypted bridge. openssl knows how to start an SMTP dialogue, and it does it automatically.

This document describes version 3.0.0-devel.0 of Marcos Bash Functions Library.