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.

Download Chilkat Perl Module

use chilkat;

$mailman = new chilkat::CkMailMan();

#  Any string argument automatically begins the 30-day trial.
$success = $mailman->UnlockComponent("30-day trial");
if ($success != 1) {
    print "Component unlock failed" . "\n";
    exit;
}

#  Should return "mail.chilkatsoft.com"

$mailServerHostname = $mailman->mxLookup('support@chilkatsoft.com');

print $mailServerHostname . "\n";