In Gmail, if someone wasn't included in an email, you can forward the email to them.
Forward a single email
- On your Android phone or tablet, open the Gmail app
.
- Open an email.
- At the bottom of the email, in the text box, tap Forward
.
- In the email, add your recipients.
- Tap Send
.
.
.Tip: To forward an email in a conversation thread, in the top right of the email, tap More 
