More: According to court documents, the dispute began when Konan discovered the mailbox key for one of her rental properties had been changed without her knowledge, preventing her from collecting and distributing tenants' mail from the box. When she contacted the local post office, she was told she wouldn't receive a new key or regular delivery until she proved she owned the property. She did so, the documents say, but the mail problems continued, despite the USPS inspector general instructing the mail to be delivered.

Konan alleges the employees marked some of the mail as undeliverable or return to sender. Konan and her tenants failed to receive important mail such as bills, medications and car titles, according to the lawsuit. Konan also claims she lost rental income because some tenants moved out due to the situation.

After filing dozens of complaints with postal officials, Konan finally filed a lawsuit under the 1946 Federal Tort Claims Act, which allows some lawsuits against the government. The case focused on the reach of the special postal exemption to the law.