USPS mail at LOW

The USPS post office in town has informed me about mail being delivered to your lake address and I thought I would pass it on to the members.  If you do not receive a first class letter once a month to your lake mailbox, the post office regards this as an inactive mailbox.  Lots of us have switched to automatic payments and are also having our bills sent to our email address.  They suggest that if you want your mailbox to stay active, you should either mail yourself a letter once a month, or make changes so the you will receive some kind of mailing once a month.  Some people have told me that all of a sudden they stopped receiving mail so I hope this clarifies any issues anyone has had with missing mail.        
LOWIA