I have a secondary MX relay mail to my server.
I want to check the Received: header for the IP of the server sending
mail to my secondary and do DNSBL lookups against that.
Example header:
Received: from dhcp024-208-141-170.insight.rr.com ([24.208.141.170])
by secondary.mail.server with smtp (Exim 4.30)
id 1BFa9f-0000Dp-00; Mon, 19 Apr 2004 07:53:52 -0700
My ACL is:
deny hosts = secondary.mail.server
message = BLOCKED: $dnslist_domain=$dnslist_value
set acl_m4 = ${if match {$h_received:}\
{\N\[(\d+)\.(\d+)\.(\d+)\.(\d+)\].* \
by secondary\.mail\.server\N}\
{$4.$3.$2.$1}fail}
dnslists = sbl-xbl.spamhaus.org:list.dsbl.org:dynablock.njabl.org/$acl_m4
This check is in the content-check, but never seems to get looked at -
I've watched my DNS logs and the lookups just aren't done. Other checks
in that section like an SPF check DO take place though.
Any ideas?
--
Avleen Vig
Systems Administrator
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