Re: [exim] Retry on 550 errors

Martin A. Brooks wrote:
> > In the real world one frequently encounters sites which
> > issue permanent failures for over-quota conditions *even
> > though* retries shortly afterwards would succeed.
>
> Tough luck. If the recieving MTA issues a 5xx then you bounce the
> message back to the sender and it's the sender's job to decide whether
> to resend or not and _not_ some intermediate MTA that thinks it knows
> the destination site better than the administrators do.

I couldn't agree more. 5xx errors are _permanent_. Whether you (the
admin of a sending MTA) disagrees is totally irrelevant. If you feel
it is incorrect, _then contact the admin in charge of the receiving
server_ and get _them_ to fix it. Ignoring 5xx's is a invitation for
having your server to be banned on being able to send _any_ traffic.

At the end of the day your "guessed" perception of why something
may be getting 5xx's is NOT the same as the perception of the MTA
that gave the error. This can only be investigated and diagnosed by
the admin responsible for that server.

Regards

Drav.