Return to Sender

 is a quest in Fallout: New Vegas.

Quick walkthrough

 * Speak with Sergeant Reyes at the Camp Forlorn Hope 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: 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 quest giver you can tell her everyone's dead and work around the issue.
 * 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.

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