Re: Minneapolis - agenda items please.

[Randy Bush <randy@psg.com>]

> At the cost of some resources belonging to the people sending the
> mail.  Anecdotal evidence goes back at least to the late '80s, when
> WSMR-SIMTEL20.ARMY.MIL sometimes had nontrivial backlogs in its
> outbound mail queue due to all the delays associated with trying all
> those MX relays at sites that did this.  Yes, the mail got through
> eventually, and yes, we've learned how to MTAs that are less sensitive
> to this kind of problem, but since the situation would have been
> completely avoidable if the zone admins hadn't listed all those
> unreachable addresses, it's hard to avoid viewing it as (presumably
> unwitting) anti-social behavior that's worth discouraging.
> 
> Completely gratuitous externalities considered harmful.

motto of poor dns admin: think locally, act globally

randy