dnsmx - prints the MX records of 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.

       dnsmx - prints the MX records of fqdn

dnsip(1), dnsname(1), dnsipq(1), dnstxt(1), dnsqr(1), dnsq(1), dnstrace(1)

       http://cr.yp.to/djbdns.htmldnsmx(1)

dnsmxfqdn