functionality is built-in for Ruby 1.8.7+.
To use simply: require 'smtp_tls' and use the
Net::SMTP#enable_starttls method to talk to
servers that use STARTTLS.
WWW: http://seattlerb.rubyforge.org/smtp_tls/
PR: ports/150115
Submitted by: Eric Freeman <freebsdports at chillibear.com>