On delivery confirmation, the honest answer is that there is no tracking mechanism once mail enters a correctional facility. InmateAid sends everything through USPS, and like standard mail it does not go out certified or with return receipt requested. Once it clears the facility's mailroom inspection and gets distributed at mail call, there is no digital ping that comes back to confirm it landed in your person's hands.
The most reliable confirmation is the low-tech version: ask them. If they received it, they will tell you. If several weeks pass and they make no mention of it on calls or in letters, that is a signal worth following up on.
If a letter comes back to InmateAid for any reason, whether a wrong address, a facility policy issue, or anything else, the team investigates what happened and resends it at no charge. You do not need to monitor for this. If something goes sideways on the delivery end, InmateAid handles it.
On the reply side, yes, inmates can and do use InmateAid's Letters from Inmates service to write back. Your inmate writes a physical letter and mails it to the InmateAid return address printed on the envelope you sent. InmateAid receives it, scans it, and uploads it to your account dashboard. You get an email notification and unlock it for $1.59 to read it.
The privacy dimension of this system is worth noting. Your personal home address never appears in the process. Your inmate sees the InmateAid address, not yours, which gives you a layer of separation that standard mail does not offer.