Hello @mclark3471 How long has this been going on? Did you recently or have ever installed an app the blocks calls/texts? Is this only happening with one person or multiple people?
Thanks for confirming that. If you don't mind, I'd like to take a look into your account, in order to check that everything is going as expected. Can you please send me a private message.
Problems with the galaxy S7 and galaxy S7 edge not receiving texts or MMS. There may be several reasons of the problem such as poor network signal, message settings, text message isn’t written correctly and more. Some of the galaxy S7 user reported problem of can’t send or receive picture message also. Check out each one listed below methods to fix can’t send or receive text messages on Samsung galaxy S7 & galaxy S7 edge.
1st Way: Reboot your Galaxy S7 edge
2nd Way: Check your phone signal strength
3rd Way: Use safe mode to check any third party app causing any issue or not
4th Way: Factory reset Samsung galaxy S7 & galaxy S7 edge
You can see details of above methods in my site bestusefultips. I hope one of these solutions fix issue of can't send or receive text messages on your Samsung devices.