On Mon, Aug 03, 1998 at 10:18:59AM +0100, Philip Hazel wrote:
> On Sun, 2 Aug 1998, Hans Morten Kind wrote:
>
> > Half my mainlog consisted of errors like
> > SMTP error [...] after MAIL FROM: [...] 421 Disk full
> > exim tried delivery every minute to these hosts. Is there any reason why
> > exim is not using the retry-database in such cases? The disk-full
> > situations are reported at different stages during the SMTP-dialogue,
> > some servers reply 4xx after MAIL FROM:, some after DATA.
>
> This is an example of a logical problem which I have noted in the past,
> but for which I haven't found a solution. At present, the receipt of a
> 4xx response to MAIL FROM or RCPT TO or DATA does not delay other
> messages to the same host, because Exim thinks it is a problem that is
> specific to this one message, and not to the host as a whole. (For
> example, it could be "quota exceeded" for the receiving user, or it could
> be some DNS delay in trying to verify the MAIL FROM argument.)
FWIW, sendmail has the same problem, though they solved it the other way
around - sendmail (using the persistent host status feature) will delay
*all* of the messages to the same host.
I think Exim's solution is better, as otherwise a problem in one message
to one user can effectively prevent any mail from one site to another from
moving.
David
--
David Shaw | dshaw@??? | WWW http://www.cs.jhu.edu/~dshaw/
+---------------------------------------------------------------------------+
"There are two major products that come out of Berkeley: LSD and UNIX.
We don't believe this to be a coincidence." - Jeremy S. Anderson
--
*** Exim information can be found at
http://www.exim.org/ ***
