If I am right, this may not be Maxwell's issue, but the USPS in Montgomery. After 9/11 they changed the system.
~ Prior to 9/11 the mail would be addressed to Maxwell AFB. They had a post office on base with their own zipcode. All bases operated this way. After 9/11 all bases were incorporated into the town's USPS office, and they screened/sorted it there. This was done for the safety of every military member and their family by removing the base from the address.
~ Mail on base is not delivered directly to the base and sorted there. It is actually delivered to each building via the ever popular white mail truck.
~~ Yes, their is sorted at the building for each cadet, but it first has to make it on base.
The AF has been doing this(SFT) for years, and it basically is a template/boiler plate paper that they pop into the computer and replace last years date, and POC's name with this years. They are not reinventing the wheel. However, with every year there are new employees and maybe that is where the confusion started. I.E. somebody didn't get the memo in the sorting mail chain.
~~ It is also a reason why some are getting the mail and others aren't.
Hence, why I say I think when you place into the equation both of these aspects you may agree with me.