fdnsmx - resolve an MX record of a hostname
fdnsmx <hostname>
fdnsmx will attempt to look up a single MX record for hostname. If one
is found, it is printed to standard output and the program exits with
return code 0. If not, nothing is printed and the program exits with
return code 1.
Ian Gulliver <ian@penguinhosting.net>
libfiredns(3)
2004-02-12 fdnsmx(1)