Hi !!
>>> OK, I see I was wrong. I just wanted to implement it because some
>>> prominent unix person had suggested this way of struggling with spammers.
>>
>> you just could use this check to score messages when no spf
>>
>> http://www.ols.es/exim/acl/ismx.acl
>
> Even if you only use that for scoring, I still believe it's unwise.
> What you're actually doing is scoring the sending domain's email
> infrastructure against what you believe it should look like. A few
> tens of millions (beermat estimate - AOL, Hotmail, Gmail, Wanadoo for
> starters) of ISP users across the world would score badly for the sole
> reason that their provider chose a particular way of engineering their
> email system.
when i test this acl, which was mainly created to emulate a default spf
policy for domains without it, i noticed that even very small providers
use different hosts than mx for outgoing mail and thus fail that test.
I agree in that other tests (like helo checks) are better than this, but
everyone is free to test anything he likes.
--
Best regards ...
I am Homer of Borg. Prepare to be assim... mmmm, donuts.
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