Domain Wide Auth
In order to authenticate the application throughout your domain and stop users having to manually authorise the app, you can make changes in the admin console.
This step will make it a lot easier for your users to access the application.
To understand how we protect your data please read our Privacy Policy
Step 1
Visit https://admin.google.com/ac/owl with a super admin account
or find the menu under "Security" => Access and data control => APi controlers
Step 2
Choose "MANAGE THIRD-PARTY APP ACCESS"
Step 3
Choose "OAuth App Name or Client ID" from the "Add app" menu
Step 4
Enter the Client ID = 114402656721-cfsk2v2k32h9q1vdv5orcf8or5789hm6.apps.googleusercontent.com
and choose "SEARCH"
Step 5
Choose "Select" next to the "Gmail Signature TooL"
Step 6
Select the Client ID
Step 7
Choose "Trused: Can access all Google Service" and then "CONFIGURE"
PLEASE NOTE THAT INSPITE OF THE WORDING THE APPLICATION WILL ONLY BE ABLE TO ACCESS THE GMAIL SETTINGS AND USERNAMES of the users that visit the application.