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Contact Us

Mon to Fri: 8 - 12:30 and 1:30 - 5 p.m.;
Sat (Fall/Spring): 10 a.m. - 2 p.m.;
Sat (Summer): Closed;
Sun: Closed;
Locker access for student packages (with AU ID card):
7 a.m. - 7 p.m. (8 p.m. in summer), 7 days a week

Letts Hall Lower Level, Room LL1 on a map

Mail Services 4400 Massachusetts Avenue NW Washington, DC 20016 United States

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Mail Services Chargeback

Mail Services requires that all departments utilize the Postage Charge Slip for AU-approved outbound mail. All fields on the form must be completed, including date, contact name, and appropriate department information for chargeback, including fund, cost center, and, where appropriate, program, gift, grant, and / or project code.  These charges will be posted against your budget monthly.

Submit Postage Charge Slip Form

If you have questions or concerns about your charges, don't hesitate to get in touch with us at 202-885-2575 or mailservices@american.edu.