Postman Plus 7603 Harford Rd, Parkville, MD21234 In business for over 10 Years, Postman Plus in the Parkville Shopping Center on Harford Road is owned and operated by…More Sue Goetz and her daughter Kim Sullivan. They are a convenient drop-off and pickup point for UPS, FedEx, DHL, and the US Postal Service. Postman Plus carries a wide variety of packing and shipping supplies, and they offer expert packing, shipping, and crating services. They also have post office boxes available for rent, and a notary public is always on duty. They also offer copying services, both self-serve and full service.