Undocumented ActionMailer openssl_verify_mode option

In the mail lib used by ActionMailer, there is a really usefull option for people using wildcard and/or self-signed ssl certificates for their mail server : openssl_verify_mode which can take a string value (none, peer, client_once, fail_if_no_peer_cert) or OpenSSL verify mode constant (OpenSSL::SSL::VERIFY_NONE, OpenSSL::SSL::VERIFY_PEER, ...)

This is how i'm using it :

ActionMailer::Base.smtp_settings = {  
  :address              => 'mail.mydomain.net',
  :port                 => 587,  
  :domain               => 'mydomain.net',  
  :user_name            => 'user@mydomain.net',  
  :password             => 'thatsasecret',  
  :authentication       => :login,  
  :enable_starttls_auto => true,  
  :openssl_verify_mode  => 'none' # Only use this option for a self-signed and/or wildcard certificate
}

I think this should be mentioned in the "Configuration options" section of ActionMailer::Base documentation. Some people could really use it and shouldn't have to go in to the mail lib documentation to find it.