Bug#313422: exim4-daemon-heavy: Bounces mail when network is down

[John Goerzen]

On Thu, Jun 16, 2005 at 05:33:04PM +0200, Marc Haber wrote:
> > What specific debug settings do you want me to try?  (It's a little
> > difficult to just experiment randomly since this is a live, production
> > server.  Our 'net connection has been a little unreliable lately, but it
> > doesn't have predictable failure <g>)
> 
> I would like to see something like
> 
> echo "test" | exim -d some.address@example.com

OK.  I have been trying this sort of thing but have not encountered an
outage long enough to duplicate the problem just yet.

> Does your DNS still function when your connection is flakey? What does

We have bind9 on the LAN, so it could return cached results even with
the Internet connection is down.  I would be highly surprised to see it
returning the NXDOMAIN like you saw with dnsmasq, and even if it did, I
thought exim4 generated a different error in that situation.

I will continue trying to get you debug information.

-- John