Message header

The part of an email that precedes the body or text of the message. A message’s full header includes detailed information about the mail servers and protocols used to route the message. Most email apps, including Mail, show an abbreviated version — typically, sender, recipients, date and subject.

In Mail, you can move the pointer around the header area of messages you receive to make a sender a VIP and reveal icons you can use to delete, answer or forward a message, as well as manage attachments.

To add more items, such as Priority, to the header of an email, click .