No, the prisons do not report back to us when the mail is handed out to the inmate. We send thousands and thousands of letters and there is only an issue if you fail to include the inmate ID number, if the facility is wrong or the inmate is no longer there. Otherwise the mail will get to your inmate.
https://www.inmateaid.com/ask-the-inmate/does-this-inmate-aid-thingy-tell-me-if-they-have-read-and-received-the-letter#answer
Accepted Answer Date Created: June 19,2015