If you receive misdirected mail, mark it as such and place it with the outgoing University mail. In addition, notify the mail carrier of the error.
If you believe you are missing mail, contact Mail Services at 301.405.4473. Most delayed and missing mail is the result of an incomplete mailing address or an incorrect ZIP Code™. Advise correspondents to use the correct ZIP+4® Code (20742-XXXX) for all mail they send to the University. The 4-Digit Add-On Code for a department or residence hall can be obtained online.