don't verify SSL certificate

app/helpers/ReadingsMailer.rb

@@ -1,7 +1,7 @@
 require "mail"
 
 class ReadingsMailer
-  OPTIONS = { :address              => "mail.van-halteren.net",
+  OPTS = {   :address              => "mail.van-halteren.net",
                 :port                 => 465,
                 :domain               => 'van-halteren.net',
                 :user_name            => 'aart@van-halteren.net',
@@ -9,6 +9,10 @@ class ReadingsMailer
                 :authentication       => 'plain',
                 :enable_ssl           => true}
                 
+  OPTS_NO_SSL_VERIFY = {
+            :openssl_verify_mode => OpenSSL::SSL::VERIFY_NONE,
+  }  
+                              
   #
   # Class methods
   #
@@ -16,7 +20,7 @@ class ReadingsMailer
     def deliver
       
       mail = Mail.new do
-        #delivery_method :smtp, OPTIONS
+        delivery_method :smtp, OPTS_NO_SSL_VERIFY
         to      'aart@van-halteren.net'
         from    'SmartMeter <aart@van-halteren.net>'
         subject 'First multipart email sent with Mail'