That's true, but if OP is European and received this Mail, it is a GDPR violation regardless of if the content is relevant or not. As far as I know, not a lawyer.
Why would a CONSTANT be computer by a function? And also, who makes a function that is just a getter for a constant recursive by accident? And do they not have tests for that? How can an important constant like Pi have a bug in production?
I don't have a car