I just received this e-mail from DL. It said things you should do/know before our upcoming flight. If this is what you got, the e-mail is from DL. I'd just go to your flight info and there should be a link for "secure flight info" and just fill in with your info. I filled these out for previously flights. You should only need to do once if you have skymiles acct.
Dear Customer,
To enhance the security of commercial air travel, the Transportation Security Administration (TSA) has developed Secure Flight, a program that compares airline passenger information against U.S. government watch lists.
As part of this program, you've had the option in the past to provide your full name, gender and date of birth when booking Delta travel. Now it is a requirement to provide this information as it appears on your non-expired government-issued photo ID for upcoming and any future travel. Effective November 1, 2010, if you do not accurately provide this information prior to 72 hours before your scheduled departure, your reservation may be cancelled.
To verify your existing reservation meets these requirements, please access your itinerary on delta.com and scroll down to select the "Secure Flight Passenger Data" link on the right side of the page. Then, submit your information as it appears on your non-expired government-issued photo ID. If you purchased your ticket via a
travel agency, you may also contact them to add your Secure Flight information. Please note that the name you provide does not have to exactly match the name on your ticket or SkyMiles account.
The Secure Flight process is now mandatory for all domestic and international travel on U.S. airlines as well as foreign carriers who fly into and out of the U.S. This process will help prevent watch list misidentifications and expedite your travel experience. You may visit the TSA website for Secure Flight FAQ's and more information.