A message header provides technical details about the message, such as the sender, the recipeint, the servers that handled the message, the date and subject. You can decide what level of information you want to see in your email. To define your Message Header:
1. Click the Gears icon located at the upper right corner of the email interface and select the Mail Tab.
2. Under the Preferences link, click on Message Headers link under Message Display subheading.
3. Click on the radio button next to Basic or Full to determine how much information will be included in your email header.
a. The Basic selection includes the standard To/From/Subject/Date fields.
b. The Full selection includes all of the information in Basic, plus network routing information.
4. Click on the Save button to implement.