US Navy Contact.

Fri Mar 11 16:11:15 UTC 2005

On Thu, 10 Mar 2005 Michael.Dillon at radianz.com wrote:

> > One of our
> > netblocks appears to be filtered somewhere inside their network,
> > preventing DNS lookups from completing, thus preventing e-mail from
> > being delivered.
>
> Am I reading this correctly? You are saying that you
> have engineered a single point of failure in your network
> and now you are suffering as a result?

>From how I read it, the original poster did not have a network failure, but
rather is being afflicted by deliberate packet filtering.  That is *not* a
SPOF effect.

Sure, multiple diverse nameservers are preferable, but even that will never
prevent blanket blocking from causing filures at some remote site.

-- 
-- Todd Vierling <tv at duh.org> <tv at pobox.com>