[dnswl-users] DNSWL opensource CommuniGate helper

[koc@xxxxxx]

Hi, everyone.

I am glad to announce DNSWL CommuniGate MTA helper.

1. Download dnswl-cgp: http://kocmuk.ru/download/dnswl-cgp/
make and setup helper as usual for CGP.

2. Set high priority server mail rule as:
---
Source  not in  trusted,authenticated
Any Route  in  LOCAL(*,LIST(*
ExternalFilte  DNSWL
---

3. Helper will add mail header: "X-DNSWL-Status: <Trust Level>"

4. Check "X-DNSWL-Status" header in following rules and skip some of them
if dnswl-status header exist.

For example: skip grey listing rule as:
...
Header Field  not in  X-DNSWL-Status:*High,X-DNSWL-Status:*Medium,X-DNSWL-Status:*Low,X-DNSWL-Status:*None
...

Or skip high weight antispam as:
...
Header Field  not in  X-DNSWL-Status:*High,X-DNSWL-Status:*Medium
...

Russian topic is:
http://kocmuk.ru/2009/11/07/cgp-dns-whitelisting/

We are using dnswl-cgp.c more then 3 month on high traffic mail systems and it works fine.
Any question and suggestion are welcome.

=Kostik