ActionMailer.default_url_options[:host] is assigned from Settings. Th…

…is prepares the code for cases where emails will be sent outside of a ActionController request. From this point on you will need to include 'mail_host' in your settings files.

app/controllers/application_controller.rb

@@ -108,7 +108,6 @@ def field_group
   #----------------------------------------------------------------------------
   def set_context
     Time.zone = ActiveSupport::TimeZone[session[:timezone_offset]] if session[:timezone_offset]
-    ActionMailer::Base.default_url_options[:host] = request.host_with_port
     I18n.locale = Setting.locale if Setting.locale
 
     # Check if the latest settings have been loaded. Display error message in English

config/environments/development.rb

@@ -27,8 +27,6 @@
     File.delete(File.join(Rails.root, 'tmp', 'debug.txt'))
   end
 
-  # ActionMailer needs to be loaded here so that we can set default_url_options in the controller.
-  ActionMailer::Base
 end
 
 ActiveSupport.on_load(:after_initialize) do

config/environments/production.rb

@@ -46,8 +46,5 @@
 
   # Send deprecation notices to registered listeners
   config.active_support.deprecation = :notify
-
-  # ActionMailer needs to be loaded here so that we can set default_url_options in the controller.
-  ActionMailer::Base
 end
 

config/environments/test.rb

@@ -32,9 +32,6 @@
 
   # Print deprecation notices to the stderr
   config.active_support.deprecation = :stderr
-
-  ActionMailer::Base
-  config.action_mailer.default_url_options = { :host => 'localhost' }
 end
 
 # Optionally load 'awesome_print' for debugging in development mode.

config/initializers/fat_free_crm_action_mailer.rb

@@ -0,0 +1,3 @@
+if Setting.table_exists? and !Setting.mail_host.nil?
+  Rails.application.config.action_mailer.default_url_options[:host] = Setting.mail_host
+end

config/settings.yml

@@ -32,6 +32,20 @@
 #
 :base_url: ""
 
+# Mail host
+#------------------------------------------------------------------------------
+# Default host used when action mailer generates urls.
+#
+# When sending email, you will need to set the host name so that the mailer can
+# generate urls inside emails that point back to your site. Unlike controllers
+# from Action Pack, the mailer instance doesn’t have any context about the
+# incoming request, so you’ll need to provide all of the details needed to
+# generate a URL.
+#
+# :mail_host: "http://www.example.com"
+#
+:mail_host: ""
+
 # Locale.
 #------------------------------------------------------------------------------
 # Default locale is American English.