On Fri, May 21, 2004 at 04:20:43PM -0700, william(at)elan.net wrote:
|
| While there would be period when some software would prefer query both
| records at the same time, I expect in the future we'll move to using only
| new records and those systems that query dns will set to only query MARID
| records and if they don't get the answer then query TXT (despite that this
| will create small delay, if < 10% of records become TXT, it'll be worth it
| to introduce small extra delay but cut back on the work of sending extra
| packets on the net).
I wouldn't be surprised if a MARID-enabled nameserver did something like:
if MARID record found, return MARID record
else, return TXT SPF records in "Additional Section".
That helps.