Express delivery can't be sent directly to the university dormitory, because every school has a guard room, and the guard room also sends letters, so express delivery can't enter the campus.

The specific management plan of each school is that the school leaders have express delivery and letter receiving points at the school gate, so the receiving channels are:

1. The courier will deliver the letter or courier to the guard room at the school gate.

2. The security guard will deliver it to the teacher in each class, and then the teacher will deliver the express mail to the students.

The security guard of the doorman calls the students and asks them to go to the doorman's room to receive the express delivery or letters themselves.