Return to Sender

 is a quest in Fallout: New Vegas.

Quick walkthrough

 * Speak with Sergeant Reyes at the Camp Forlorn Hope Command Tent to gain this quest.
 * Deliver the radio security upgrade codes to each of the ranger stations.
 * Upgrade Ranger Station Alpha.
 * Upgrade Ranger Station Bravo.
 * Upgrade Ranger Station Charlie. (Possible Bug, see Bugs Section below)
 * Upgrade Ranger Station Delta.
 * Upgrade Ranger Station Echo.
 * Upgrade Ranger Station Foxtrot.

After you complete that you're sent back out to several stations to double-check the intel reports. Once you do that, you have to go to Camp Golf and confront Chief Hanlon about it. If you decide to turn him in you get 500xp and he kills himself. If you keep it a secret he walks off and you get 500xp. Also if you have killed Caesar there is another dialog but it ends up about the same as keeping it a secret.

Behind the scenes
The name is a reference to the Elvis Presley song of the same name.

Bugs

 * If you've talked to Ranger Andy in Novac and gone to find out why Station Charlie is silent, you will be unable to give the codes to anyone because everyone at station Charlie will be dead. If you talk to the Sergeant Reyes you can tell her everyone's dead and work around the issue.
 * Often after delivering a code to a base an extra quest marker will appear on the player's compass but not their wasteland map. The quest marker simply points to Camp Forlorn Hope and can be widely ignored.