Undocumented :openssl_verify_mode option for smtp_settings

actionmailer/lib/action_mailer/base.rb

@@ -296,6 +296,10 @@ module ActionMailer #:nodoc:
   #     information and a cryptographic Message Digest 5 algorithm to hash important information)
   #   * <tt>:enable_starttls_auto</tt> - When set to true, detects if STARTTLS is enabled in your SMTP server
   #     and starts to use it.
+  #   * <tt>:openssl_verify_mode</tt> - When using TLS, you can set how OpenSSL checks the certificate. This is 
+  #     really useful if you need to validate a self-signed and/or a wildcard certificate. You can use the name 
+  #     of an OpenSSL verify constant ('none', 'peer', 'client_once','fail_if_no_peer_cert') or directly the 
+  #     constant  (OpenSSL::SSL::VERIFY_NONE, OpenSSL::SSL::VERIFY_PEER,...).
   #
   # * <tt>sendmail_settings</tt> - Allows you to override options for the <tt>:sendmail</tt> delivery method.
   #   * <tt>:location</tt> - The location of the sendmail executable. Defaults to <tt>/usr/sbin/sendmail</tt>.