Direct Mail PO Box Return Address: Who Sent It?
Adverts often come from a vendor or fulfillment PO Box, not the brand. How to read the envelope, how your address was found, and how to cut the flow.
How to Tell if Mail Is From a Real Government Agency
Real agency mail can be checked without using anything printed on it. How to verify an IRS or other official letter, and where to report a fake.
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Class Action Settlement Administrator PO Boxes
Settlement notices come from a court-appointed administrator’s PO Box. Here is what that address shows and how to check the case docket yourself.
Bank and Card Issuer PO Boxes: How to Check One
Bank, card and lender mail comes from processing PO Boxes. Here is what each address is for and how to check the sender through FDIC, OCC and NCUA.
Debt Collection PO Boxes: What the Letter Means
Collection letters arrive from PO Boxes. Here is how to identify the sender, what the FDCPA validation notice must contain, and who regulates it.
Why Health Insurance Mail Comes From a PO Box
Claims, appeals and plan mail arrive from payer PO Boxes in other states. Here is why, and how to confirm an address through your own plan.
Why Hospitals Mail Bills From a PO Box
Medical bills arrive from unfamiliar PO Boxes because billing is centralized or outsourced. Here is how to check a bill without using the letter.
ZIP+4 on a PO Box: What the Extra 4 Digits Mean
The four digits after a PO Box ZIP code are a USPS routing detail. Here is what they encode, and why they do not name who rents the box.
Can You Refuse Delivery of Mail From a PO Box?
Refusal turns on the class of mail and whether it has been opened, not on who sent it. What refusal does, what it does not do, and the four cases people confuse with it.