debian man page for fdnsmxalist

fdnsmxalist(1)						      General Commands Manual						    fdnsmxalist(1)

NAME
       fdnsmxalist - resolve a list of MX records and their corresponding A records for hostname

SYNOPSIS
       fdnsmxalist [-x] <hostname>

DESCRIPTION
       fdnsmxalist  will attempt to look up a list of MX records for hostname.	If any are found, they are printed to standard output seperated by
       newlines in the format:

	Protocol (Priority) hostname:port

       The program then looks up lists of A and AAAA records for each MX record, and prints them to standard output, one IP per line.	Lines  are
       printed	to  standard  output  starting with "ERROR: " if any MX records have no corresponding A or AAAA records, are CNAMEs (an RFC viola-
       tion), or have A or AAAA records which point to non-routable IP addresses.

       If the -x switch is passed on the command line, the program outputs machine-parsable XML instead of the human-readable tree.

       Exit codes for the program are:

	 0 - Everything looks fine
	 1 - An MX has a non-routable IP
	 2 - An MX doesn't exist
	 3 - An MX is a CNAME
	 4 - An MX is an IP address
       100 - Invalid syntax
       103 - DNS timeout or host does not have MX records

AUTHOR
       Ian Gulliver <ian@penguinhosting.net>

SEE ALSO
       libfiredns(3)

								    2004-02-12							    fdnsmxalist(1)