On Sat, 29 Mar 2008, John Levine wrote: > > Getting rid of the AAAA fallback flips the default to be in line with > reality -- most hosts don't want to receive mail directly, so if > you're one of the minority that actually does, you affirmatively > publish an MX to say so. I agree that this is the right thing to do in an ideal world. However there's a lot of old running code out there that implements the AAAA fallback. Is IPv6 still enough of a toy that the stability of its specifications doesn't matter? Tony (in two minds). -- f.anthony.n.finch <dot@xxxxxxxx> http://dotat.at/ ROCKALL MALIN: SOUTHERLY VEERING WESTERLY, 4 IN MALIN AT FIRST, OTHERWISE 7 TO SEVERE GALE 9. ROUGH BECOMING VERY ROUGH OR HIGH. RAIN OR SHOWERS. MODERATE OR GOOD, OCCASIONALLY POOR. _______________________________________________ IETF mailing list IETF@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf