Autor: David Woodhouse Fecha: A: Alan J. Flavell Cc: Exim users list Asunto: Re: [exim] Re: using rfc-ignorant as a whitelist!?!?!? (was: a
large number of domains fronted by Exim are refusing bounces...)
On Tue, 2005-06-21 at 19:03 +0100, Alan J. Flavell wrote: > Apropos misbehaved MTAs, can someone explain the remarkable proportion
> of .br MTAs which seem to respond to unknown user with a 4xx response
> code? Some of that Brazilian spam gets retried for days on end, and
> repeatedly tempfailed with unknown sender, before they finally give
> up.
I've seen a lot of this from poorly configured postfix boxen.
