How can you contact the Postmaster General of Seagoville Texas?

According to the usps.com web site and a grammar book (found online), the address should be: The Honorable John E. Potter Postmaster General U.S. Postal Service 475 L'Enfant Plaza, SW Washington, DC 20260-0010 E-mail: pmgceo@usps.gov

In addition, the salutation in a letter should be:

Dear Mr. Postmaster General: