Re: [exim] Sporadic unroutable address

On Wed, 4 May 2005, Giuliano Gavazzi wrote:

> At 3:39 pm +0200 2005/05/04, Black.hawk wrote:
> >
> > 2005-05-04 15:24:58 H=(khc-web.co.jp) [211.247.117.96] sender verify fail
> > for <ignominies@???>: Unrouteable address

So it's saying that b-b.sk is an unrouteable mail domain...

> I doubt anyway that that is a sporadic problem, as I already said it
> looks like a router misconfig.

As seen from here, the domain b-b.sk looks-up as

10 mta-in.stonline.sk
30 postar.telecom.sk

Both of these correspond to one A record

host mta-in.stonline.sk
mta-in.stonline.sk has address 213.81.152.19

host postar.telecom.sk
postar.telecom.sk has address 195.146.132.55

Both of those addresses currently respond to an SMTP call from here.

I could well believe the hon. O.P's claim that the effect is sporadic.

I take it that exim is handling this as a fatal error and returning
5xx, rather than as a retryable error and returning 4xx ? That's
obviously a bit awkward. You might want to add an exceptions list to
your "verify = sender" stanza to work around this while the problem is
investigated.