SUMMARY

This is a new feature called Gmail confidential mode which the users can use while composing a new email.  

DETAILS

This is a new feature where recipients will not be able to forward, copy,  print or download your email.

Recipient can view the message and attachments until the expiration date or until the sender removes access (from your sent email).

At the bottom of the email screen, click on the icon.

 Then select the Expiration Period and click Save.

Any user that needs to send confidential mail should use this new feature. For more details Click here.