I want to send email notification when any job gets done. Please let me know how can we propagate.
You can configure Jenkins to send email when a job finishes either by using a plugin or not.
First you have to configure your mail server settings by clicking on Manage Jenkins > Configure System and find the E-mail Notification section near the bottom of the page. Optionally also configure System Admin e-mail address in the Jenkins Location section.
Then for each job got to its configuration and Add post-build action, select E-mail Notification and configure as needed.
The issue with default jenkins email mechanism is that it has very limited customization.
The alternate approach is to use the Email-Ext plugin, a powerful email notification mechanism. You can define some global triggers but you can also customize the settings for each job. Sending emails for success, failure or any other build status is supported.