The staff absolutely opens and reads each piece of incoming mail. All inmates are prohibited from communicating with people associated with their case, with prosecution or judicial personnel (related to their trial), with other inmates from different institutions and with some felons (depending on the inmate's crime).
https://www.inmateaid.com/ask-the-inmate/does-the-staff-read-the-mail-and-try-to-find-where-the-mail-is-coming-from#answer
Accepted Answer Date Created: July 21,2015