In the Mail app > Mail > Preview, then choose up to five lines.
Go to Settings in the upper-left corner of the Mail app, tap Edit, then select “To or Cc.”
In an email, tap a person’s name or email address, then do one of the following:
Add to your contacts: Tap Create New Contact or Add to Existing Contact.
You can add a phone number, other email addresses, and more.
Add to your VIP list: Tap Add to VIP.