Domain Name System Media Types

What Is This?

This page contain information about my attempts to standardize MIME types for DNS contens. Simple example, formatted as a MIME e-mail:

From: foo@example
To: bar@example
Content-Type: text/dns

@                       1D IN SOA (
                                        2004052201      ; serial
                                        3H              ; refresh
                                        1H              ; retry
                                        1W              ; expiry
                                        1D )            ; minimum

                        IN NS
                        IN NS
                        IN NS

                        IN MX   5
                        IN MX   10

                        IN A  
www                     IN A  

If that is just gibberish to you, you are likely not the intended audience for this page.

This work was sponsored by Simon Josefsson Datakonsult. If you need commercial help with utilizing this technology, or have a related project that you want help with, please feel free to contact me. If you find my work in this area useful, also please consider making a donation. No amount is too small!

Background and Related Work

The Document

Open Issues

There are no currently known open issues. Have you found something wrong with the document? Please let me know. Also let me know if there is something you'd like to see added to this page.


This timeline was re-constructed in 2005, so major events may be lacking.

Discussed on IESG telechat.
IETF last call.
Version 2 published.
Version 1 published.
Version 0 published.

Copying Conditions

The copying conditions for RFCs apply, of course. However, beyond that, the essential parts of the document is also available under the following, less restrictive, license.

	Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005 Simon Josefsson

	Regarding this entire document or any portion of it, the
	author makes no guarantees and is not responsible for any
	damage resulting from its use.  The author grants irrevocable
	permission to anyone to use, modify, and distribute it in any
	way that does not diminish the rights of anyone else to use,
	modify, and distribute it, provided that redistributed
	derivative works do not contain misleading author or version
	information.  Derivative works need not be licensed under
	similar terms.

Simon Josefsson