I wouldn't believe this if I hadn't seen it myself — my mom's Christmas card to me was returned to her as "not deliverable as addressed" two weeks ago with inte

I wouldn't believe this if I hadn't seen it myself — my mom's Christmas card to me was returned to her as "not deliverable as addressed" two weeks ago with intermediate postmarks from Feb and March. My address was perfectly legible and complete. Her return address was effectively: A. [her first initial] 123 Main [missing Street] 55555 [just the zip, no city/state] She brought it on a plane to me last week.