- Click to Compose button
- Enter message, recipients id and subject
- AT the bottom strip, in the line of the send button, next to the insert photo there is a button “Turn Confidential Mode on/off”. Click the same
- Set Expiry period.
- If want passcode to open email message select SMS Passcode. The recipient will receive code from Google to open the email.
After enabling this setting recipient will not be able to use the options like print, forward, replay etc. And after a specific time period as set before the email message will get deleted automatically.