Eli schrieb:
> I would like to be able to tell users via the X-Virus-Scan: header whether a
> message was indeed scanned or not - in the event of the virus scanner
> failing but defer_ok still allowing the message in. From what I can tell,
> this would probably only be possible if there was something like a
> "deferred" variable which would allow something like this:
>
> warn message = X-Virus-Scan: ${if eq {$deferred}{0}
> {YES}{NO}}
> !malware = true/defer_ok
>
> This would of course be useful in any other case where there's a "defer_ok"
> modifier available so that people can detect the deferring.
>
> ... Or is there another way that currently exists?
Sure. Check the archive:
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050221/msg00214.html
The given snippet shows how to detect a non-working virus-scanner.
$acl_m9 corresponds to the deferred variable you're looking for. Use the
2 warn statements and then apply your favourite policy based on the
results in $acl_m0 and $acl_m9.
HTH,
Patrick
