--On 14 March 2011 12:08:48 +0000 ROGERS Richard
<[email protected]> wrote:
Bill Hayles wrote:
Hi, Steffen
On Mon, 7 Mar 2011 18:08:45 +0100 in message number
<[email protected]>, received here on
08/03/2011 10:56:38, "Steffen Heil" <[email protected]> said:
> Most recipients will drop mails that are FOR
> and FROM them... This is a classical spam approach.
Is there any way of doing this in Exim? It would be useful.
Bill,
You could do something like this:
warn
condition = ${if eq
{${lc:$sender_address}}{${lc:$local_part@$domain}} }
sender_domains = +relay_to_domains
!hosts = +relay_from_hosts : *.paypal.com [or any other exemptions
you need]
Actually, you shouldn't need them. We haven't accepted email where the
sender is in our domain for several years now, except where the email gets
either an SPF or DKIM pass. Actually, we don't use either SPF or DKIM in
the implementation, but we would if implementing now.
!local_parts = [put your exemptions here]
set ACL_STATUS = SameAddr
Then do what you want with the ACL_STATUS flag (or just write it as a
"deny" if you don't need any more flexibility).
Note the exemptions - you will almost certainly need some for genuine
purposes.
Regards
Richard
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--
Ian Eiloart
IT Services, University of Sussex
01273-873148 x3148
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