I sent my 709 gift tax return to the address below. I noticed 2 problems: 1) USPS tracking still shows my original city Santa Clara where I mailed from. Does USPS not scan IRS mails? 2) I did not ask for signature required, but the tracking email says "Reminder: This item requires a signature for delivery. If you can't sign in person, you can authorize someone else to sign." . The IRS address seems to be a P.O box. and I don't think they will sign. Will USPS not deliver in this case? Should I re-send it via priority mail or do something else? I am worried about this and would appreciate expert advice. Thank you.
Department of treasury
Internal Revenue Service center
Kansas City , MO-64999
