After the staff opens and inspects each piece of mail, they have "mail call". All the inmates assemble in one spot and the guards hand out the mail one envelope at a time.
It is the inmate’s responsibility to contact you to let you know they received something you mailed. Write to the inmate if you want to confirm delivery of an item you sent to him or her.
https://www.inmateaid.com/ask-the-inmate/how-will-an-inmate-know-that-they-have-mail#answer
Accepted Answer Date Created: November 09,2014