nanog mailing list archives
Re: houston.rr.com MX fubar?
From: Mark Andrews <Mark_Andrews () isc org>
Date: Tue, 15 Jan 2008 15:00:25 +1100
Fallback to A should be removed sure sounds like a plan.great idea. it will only break mail to 42% of the internet.
Since there is no fallback to AAAA, in a few years it will break very little as most of the internet will have IPv6 MTA's (and hence MX's) for their mail domains. MX fallback to A should have had a sunset time added to it when it was originally proposed. It is, after all, only a transition strategy. We can still add a sunset clause. MTA's would lookup their own MX records for the mail domains they are configured as final delivery agents for and if not found log that there are missing MX records. Mark
http://en.wikipedia.org/wiki/Principle_of_least_astonishment randy
-- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews () isc org
Current thread:
- houston.rr.com MX fubar? Chris Boyd (Jan 12)
- Re: houston.rr.com MX fubar? Steve Atkins (Jan 12)
- Re: houston.rr.com MX fubar? Suresh Ramasubramanian (Jan 12)
- Re: houston.rr.com MX fubar? Tony Finch (Jan 13)
- Re: houston.rr.com MX fubar? Suresh Ramasubramanian (Jan 13)
- Re: houston.rr.com MX fubar? Tony Finch (Jan 14)
- Re: houston.rr.com MX fubar? Suresh Ramasubramanian (Jan 14)
- Re: houston.rr.com MX fubar? Mark Andrews (Jan 14)
- Re: houston.rr.com MX fubar? Suresh Ramasubramanian (Jan 14)
- Re: houston.rr.com MX fubar? Randy Bush (Jan 14)
- Re: houston.rr.com MX fubar? Mark Andrews (Jan 14)
- Re: houston.rr.com MX fubar? Tony Finch (Jan 15)
- Re: houston.rr.com MX fubar? Tony Finch (Jan 15)
- Re: houston.rr.com MX fubar? Tony Finch (Jan 13)