Where to send late show with David Letterman email?

Where to send late show with David Letterman email?
Contact Dave via the following options:
By Mail:
David Letterman C/O Creative Artists Agency
9830 Wilshire Blvd
Beverly Hills, CA 90212
USA
David Letterman
1697 Broadway
New York, NY 10019
By Email:
lswdl@aol.com
By Telepathy:
Sorry, this option is no longer available.
Get Dave's Autograph:
Send a a self-addressed stamped envelope to:
Dave Autograph Request
Susan Kanani
Late Show with David Letterman
1697 Broadway, 12th Floor
New York, NY 10019
Have a Stupid Pet or Human Trick?:
Call 1-888-PET-TRIK or
send to cbsmailbag@aol.com
Late Show Ticket Info:
To request free tickets to The Late Show with David Letterman, send a postcard with your name, address and daytime & evening phone numbers to:
Late Show Tickets
The Ed Sullivan Theater
1697 Broadway
New York, NY 10019
Two (2) tickets per postcard. Please send in only one postcard--multiple requests will be discarded. The minimum age to attend The Late Show is 18.
Please be aware that the waiting time might be in excess of 9 months.