That is really weird @rire! I've never heard of this happening.
I tried to do some testing with my own account, but I wasn't able to get an email sent out to my inactive employees (Other Square Employees). I think for this issue you should reach out to our CS Team. They will be able to look at the emails sent out from the back-end and determine what happened.
If you need help contacting the CS Team please let me know!
