dnsmx - prints the MX records of fqdn dnsmx fqdn dnsmx prints the MX records of fqdn . If there are no MX records, dnsmx prints an artificial MX record, simulating the behavior of MTAs. Normally dnsmx exits 0. If dnsmx encounters a temporary problem that prevents it from determining the list of MX records, it prints an error message and exits 111. dnsip(1), dnsname(1), dnsipq(1), dnstxt(1), dnsqr(1), dnsq(1), dnstrace(1) http://cr.yp.to/djbdns.html