All of the mail arriving to the MCI -Shirley mail intake is handled by a very competent staff. They go through and inspect the mail, then create three destination piles before delivering it into the units. If your inmate ID is correct, the staff will make sure that the inmate and the unit match as there is always movement between the different security levels based on conduct, status changes and length of sentence.
https://www.inmateaid.com/ask-the-inmate/will-the-mail-get-to-my-inmate-if-it-s-addressed-to-the-minimum-and#answer
Accepted Answer Date Created: April 13,2016