Hey batter says it so well. It is way less than exact. My son received letters from about the same numbers of schools. He got duplicate letters each week from two or three different schools addressed to his given name, his "nickname".
July 1 came and he heard from 4 or 5 schools, a few more as the summer and fall went on. The school he signed with sent 3 letters including the one congratulating him for signing.
Some of the heaviest "mailers" never called. My point is that mail may, or may not, be the first step by the school, in the process. An inexact one for sure. Enjoy it while you can as there are many highs and lows just getting to the NLI.
Geaux Cajuns!!