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Special Forums IP Networking Dig only returns MX records in +trace mode Post 302942382 by Joop Kaashoek on Tuesday 28th of April 2015 11:12:52 AM
Old 04-28-2015
Dig only returns MX records in +trace mode

One of our email recipients has 17 mx records, and our emailing program postfix on linux does not retrieve these records. When using dig, the same thing happens.

This command returns no mx records
Code:
>dig mx fnb.co.za

But when using +trace, the records get returned
Code:
>dig mx fnb.co.za +trace

The question is whether there is a setting we can make to make the standard mx lookup work properly.

Thanks
 

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dns_browse(1)						      General Commands Manual						     dns_browse(1)

NAME
dns_tree -- command-line frontend to dig SYNOPSIS
dns_tree [-f] [-v] [-d] [-t TYPE] [-m MATCH] DNS_domain DESCRIPTION
This manual page documents briefly the dns_tree command. This manual page was written for the Debian distribution because the original program does not have a manual page. dns_tree is a program that works as a front-end to dig. Given a specific domain dns_tree will make several dig invocations to fetch a zone and it will format the output in in a somewhat sensible hierarchical style (a tree). Information extracted from the DNS relies on being possible to fetch a zone through a zone transfer. If the DNS servers for the requested domain do not allow file transfers dns_tree will not be able to obtain information from the zone. All data obtain is cached in ~/.DNS_BROWSE with an approximation of the usual DNS caching rules. Remove all files in that directory to prematurely flush the cache. OPTIONS
A summary of options is included below. -t TYPE Show only records of TYPE. This argument can be repeated to indicate multiple types. Use the "all" type to print all the known types. -m MATCH Show only records in which the first component matches the PERL regexpt MATCH. -h Show summary of options. -v Enable verbose mode. All DNS requests are printed in the standard error. -d Enable debug output. Presents internal information of the program -f Override warnings (force). SEE ALSO
dig (1), dns_browse (1), perlrequick (1). AUTHOR
This manual page was written by Javier Fernandez-Sanguino jfs@debian.org for the Debian system (and may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version pub- lished by the Free Software Foundation. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL. dns_browse(1)
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