Re: [exim] AUTH FAIL not fatal error?

On Tue, 24 Apr 2012 15:19:19 -0400 John Jetmore wrote:
> On Tue, Apr 24, 2012 at 3:07 PM, Frank Elsner <Frank.Elsner@???> wrote:
> >
> > Hi colleagues,
> >                just curious:
> >
> > Why is this not a fatal error resulting in a non-delivery report:
> >
> > 2012-04-24 17:21:03 1SMhY5-0004Nn-Vg == xxxx@??? R=via_egypt T=smtp defer (-42): authentication required but authentication attempt(s) failed
>
> Is it possible that the remote server returned 4xx codes in response
> to the authentication requests? I'm imagining the difference between
> the server saying "4xx, I can't talk to my back end user database
> right now" and "5xx, That's not a valid username/password combo"

No. It's a 5xx:

2012-04-24 21:16:41 1SMlBZ-0007qG-4j client authenticator failed H=eg-mailfrontend.elgouna.tu-berlin.de [41.128.204.142] 535 Incorrect authentication data
2012-04-24 21:16:41 1SMlBZ-0007qG-4j == xxxx@??? R=via_egypt T=smtp defer (-42): authentication required but authentication attempt(s) failed

--Frank Elsner