You checked your PO box, grabbed/signed for your mail, and left. Later you open one of those mailings you received and see $8k in cash in there without any notes. Do you go back to your PO box and say that even though this was addressed to your mailbox, that you weren't expecting to receive 8k in cash and that you don't know the sender who just left their name? Asking for a friend.
Keep it. Give some to charity. The postal workers aren't going to attempt returning it to the sender.
Also, what would you think if you typed the sender's address into Google Maps and the address doesn't exist? Who sends that cash through mail anyway? Very true!
Stating the obvious but people doing things on the up-and-up dont send giant unmarked stacks of cash through the post. There is either a meth lab operator or a pay by mail assassin looking for you as we speak.
Youd be surprised at how strict the USPS is on postal workers. My postman shoots the breeze with me every now and again, and hes told me that in every distribution enter there is a separate entry to the attic with small view windows everywhere in the ceiling for the sole purpose of monitoring suspicious workers. They are very well know by employees, to set up traps and stings to get the workers on tape for stealing or opening up mail. A maintenance guy lost his 85K job for $10 walmart gift cards.
I have a friend whose parents are retired postal workers and they said the same thing. They always had testers and ways to watch workers sort the mail. Also because the sender's address is fake and doesn't exist, the mail/cash would be given to whoever opens it within USPS once it's decided that they can't deliver it to anyone.
