Neither Rain nor Sleet nor Skags

Neither Rain nor Sleet nor Skags

After completing 'No Vacancy', this mission will be immediately offered to you. You have to deliver the packages within the time limit. The time will be extended for a few seconds after delivering the messages to the mailboxes. The catch is the actual location where you need to deliver the messages are packed with bandits. See the video below for the location of the mailboxes.

You may also want to clear the area of enemies before attempting this to have an easier time. Once done, turn it back in to the board to get your reward.