MX Lookup Mail Server Domain by Email Address

How to find the mail server for a given email address. Returns the domain name of the primary mail server.

Downloads for Windows/Linux and Install Instructions

require 'rubygems'
require 'chilkat'

mailman = Chilkat::CkMailMan.new()

#  Any string argument automatically begins the 30-day trial.
success = mailman.UnlockComponent("30-day trial")
if (success != true)
    print "Component unlock failed" + "\n"
    exit
end

#  Should return "mail.chilkatsoft.com"

mailServerHostname = mailman.mxLookup("support@chilkatsoft.com")

print mailServerHostname + "\n"