On 1/04/2016 10:22 PM, Russell Coker via luv-main wrote:
> From: "[email protected]" <[email protected]>
> 
> Above is the From field of a spam that recently arrived in my inbox, the 
> Return-Path and Message-ID refer to trimas.com.au so it didn't hit any SPF 
> checks.
> 
> Is there a good way of stopping such spam with Postfix and SpamAssassin?

Not likely, email is so broken in some areas, backscatter is one of
them; backscatter caused by incorrect SPF handling.

Above, the "postmast..." part is just the /pretty/ name, it isn't the
real from address; still the trimas.com.au domain has no SPF record for
validation anyway.

> I wrote some milter code to stop this for a client, the code was a little 
> hacky and even if I had approval to reuse it the amount of work involved 
> would 
> vastly exceed the amount of time it takes to just delete such mail.

You will be fighting a never ending battle.

Cheers
AndrewM
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