On Tue, Mar 26, 2002 at 06:39:04AM +0100, ?ukasz Grochal wrote:
[...]
> 2) It's possible that such scanning will introduce duplicate messages,
> as described in RFC1047. <ftp://ftp.isi.edu/in-notes/rfc1047.txt>
> I don't believe this is likely to happen unless - again - the
> system is under high load and can't scan the messages fast enough.
Hmmm, I wonder....
First, this RFC advises to use a timeout of five minutes when waiting
for a 250-message. It should happen very rarely to hit such a timeout
with a reasonable local_scan-function. But of course, if there is a
high load and e. g. a virus-scanner is scanning a 30MB-mail, it may
happen.
But second, I'd expect exim to detect a timeout and react accordingly.
Since TCP is no stateless connection, the sending of a 250-message to
accept a mail should return an error-code. I'd be very surprised if
Phil did not check this error code.
--
CU,
Patrick.
