Examples:
mailto.php?body=line1%0D%0Aline2
mailto.php?body[]=line1&body[]=line2
mailto.php?to=email1%40example.com%2C%20email2%40example.com
mailto.php?to[]=email1%40example.com&to[]=email2%40example.com

Normalized URI:
mailto:

To: 
Cc: 
Bcc: 
Subject: