Re: [Exim] Scanning mail with exim4

At 00:00 16.02.02, Joachim Wieland wrote:

Hello,

> -> write the mails to the hard disk and reinject them after the scan

Well, the virusscanner has to write files anyway. But that solution comes
close to the exiscan-principle.

> -> I think queue_only_load would not solve the problem since
> local_scan() would be called for queueing as well.

Thats correct. I took a look at the source and local_scan() is called
directly in receive_msg(), and queue_only_load is checked afterwards in the
main receive-loop. I think thats a tricky thing to solve, since a
load-check at smtp-time could only insert a delay in the communication with
the client. And adding a flag to the mail (to check it later) and write it
to the queue would break the "reject at smtp-time"-principle.

>If you are an ISP you can't take any of the first two solutions. You can't
>slow down your customers and you cannot just refuse connections on your
>SMTP port.

Correct. But then you cannot reject messages at smtp-time, IMO.

regards,
Christian

--
Mailadministrator of the Clinic of Medicine "Benjamin Franklin" Berlin.