Can I tell if my man is getting other females to write him or send money while he's locked up?

Inmates privacy is protected, therefore you cannot gain any information on the inmate's phone calls, visitation, who send him mail or money. He will not have Internet access, but there are plenty of ways to continue contact with people on the outside. If you know that he has done this while not locked up, there is a pretty good chance he will doing some of the same while locked up.