Add configuration and documentation smtp setting

INSTALL.md

@@ -86,6 +86,15 @@ the image-link to login using the provider will be shown.
 
 
 #### Email Notifications
+Check your service provider smtp settings and set the following variables in `config.yml` file:
+```
+mail_address: 'smtp.host.com'
+mail_port: 587
+mail_username: 'username@host.com'
+mail_password: 'password'
+mail_authentication: 'plain'
+```
+
 Open a separate terminal and go into the directory where the rails app is present, and type the following to start the delayed_jobs worker for sending email notifications.
 ```
 rake jobs:work

config/config.yml.example

@@ -31,3 +31,11 @@ production:
   # If you add more providers that do not require a key, you still have to create the 2 variables with sample data
 
   transifex_live_api_key: ''
+
+  # Set the smtp configuration of your service provider
+  # For further details of each configuration checkout: http://guides.rubyonrails.org/action_mailer_basics.html#action-mailer-configuration
+  mail_address: 'smtp.host.com'
+  mail_port: 587
+  mail_username: 'username@host.com'
+  mail_password: 'password'
+  mail_authentication: 'plain'

config/environments/production.rb

@@ -68,4 +68,14 @@ Osem::Application.configure do
 
   # Set the detault url for action mailer
   config.action_mailer.default_url_options = { host: CONFIG['url_for_emails'] }
+
+  # Set the smtp configuration of your service provider
+  # For further details of each configuration checkout: http://guides.rubyonrails.org/action_mailer_basics.html#action-mailer-configuration
+  config.action_mailer.smtp_settings = {
+    address:              CONFIG['MAIL_ADDRESS'],
+    port:                 CONFIG['MAIL_PORT'],
+    user_name:            CONFIG['MAIL_USERNAME'],
+    password:             CONFIG['MAIL_PASSWORD'],
+    authentication:       CONFIG['MAIL_AUTHENTICATION']
+  }
 end