No problem I will get the shipping address of Southern Methodist University so that you can send the mails easily.

Here is the process to send mail for USPS, UPS and FedEx
Student Name
3140 Dyer St

SMU #XXXX

Dallas TX 75275-XXXX

XXXX being the 4 digit PO Box number

PO Box Rental Rates
P.O. Box rental prices are $85 per year or $40 per semester and $35 for summer.

Working hours
Hours
Window Package Pickup
Mon-Fri 8:00AM - 5:00PM 8:00AM - 5:00PM
Saturday - Mail and Package pickup only Retail Closed
11:00AM - 2:00PM

Phone Numbers
Patrick Cullen (Director) 214.768.3400
Lynne Hascal (Manager) 214.768.4450

Services offer by them

Copy Centre

Direct Mail

Postal Services

Address:-
Southern Methodist University
PO Box 750100 | Dallas, Texas | 75275-0100

Phone:-
+1 214-768-2000