Rails ActionMailer Plugin for TLS encryption

Can anyone point me to a plugin/directions for enabling emails through a smtp se开发者_JS百科rver requiring encryption? I've done some searching and found http://agilewebdevelopment.com/plugins/actionmailer_tls , but the download is down, a pattern repeated with several other plugins also.

If you are using at least Ruby 1.8.7, you don't need any plugins, you just need to configure ActionMailer to use TLS by putting :enable_starttls_auto => true into config.action_mailer.smtp_settings.