How to bulk check MX records on a large number of domains?

Question

Domain Name System

For a little research, you need to find out on which mail service corporate websites operate on certain domains. In the search, there are a huge number of services that provide such a service for free, but only for one site.
Tell me, can there be a resource that can do this in bulk for a large list of domains?

Answer 1

Bash script and dig in a loop