Postal Methods Changing the given address
So we sent out thousands of letters and started getting some of them returned as undeliverable. It turns out that postal methods changed the address. In one example we sent the address:
PO BOX 543
BOSTON MA 02199
and postal methods change this to:
PO BOX 170731
BOSTON MA 02117-0961
it deleted the country as well.
Why is this happening?