Can I Send an Inmate a Letter Without a Return Address?

You cannot leave it blank. Facilities reject mail that comes in without a return address. It will almost certainly come back unopened, and your inmate never sees it.

The good news is you do not have to use your home address. InmateAid's letter service exists specifically for this situation. When you send a letter through InmateAid, the return address on the envelope is InmateAid's office in South Florida, not your address. Your inmate gets the letter, your address stays private, and if the facility needs to return anything, it comes back to InmateAid rather than to you.

It is one of the more practical reasons people use the service, especially when privacy or safety is a concern.