My Hirelings have been sending me the same letter since Summerset! Poor things must be caught in one of those psijc time loops. Free Ubrek and the others you fiends !!!!
Everything will be alright in the end, if its not alright its not the end.
Once you run out of story, they send you repeating mail forever. ZOS did go through one update and add more hireling stories, but that's worked as intended.