if he is alone in this lockdown status, then privileges like email (commissary, phone, and visitation too maybe) were evidently taken away for some disciplinary reason.
https://www.inmateaid.com/ask-the-inmate/why-cant-my-husband-recieve-emails-from-me-we-have-been-emailing-and-video-chatting-when-i-call-the-jail-all-they-say-is-he-is-in-lockdown-i-tried-to-send-him-an-email-on-jailatm-and-it-says-that-he-can-no-longer-recieve-my-messages#answer
Accepted Answer Date Created: July 19,2021