email notification in github

2. On GitHub, navigate to the main page of the repository.
3. Under your repository name, click  Settings.
   
4. Click Notifications.
   
5. Type up to two email addresses, separated by whitespace, where you'd like notifications to be sent. If you'd like to send emails to more than two accounts, set one of the email addresses to a group email address.
   
6. If you operate your own server, you can verify the integrity of emails via the Secret token. This token is sent with the email as the Approved header. If the Approved header matches the token you sent, you can trust that the email is from GitHub.
   
7. Optionally, select Send from author to have emails delivered using the committer's email address. Otherwise, emails are sent from noreply@github.com.
   
8. Click Save settings.
9. 
   

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