The U.S. Supreme Court justices receive correspondence from the public by letter rather than by email.
Preparing Your Letter
Use the correct title and name for the recipient. The U.S. Supreme Court’s website lists the names of current justices at http://www.supremecourtus.gov/about/briefoverview.pdf. On the envelope and in the inside address of your letter, address the letter to "Chief Justice [Full Name]" or "Justice [Full Name]."
Use the salutation “Dear Chief Justice:” or, for the associate justices, “Dear Justice [Last Name]:”
Mail your letter to:
The Supreme Court of the United States One First Street NE Washington, DC 20543
If you have questions or comments of a general nature that need not go to a specific justice, write to the public information officer at the same address.