Le samedi 19 avril 2014, 11:29:52 Craig R. Skinner a écrit :
> On 2014-04-19 Sat 08:26 AM |, Martin Braun wrote:
> > I was thinking about adding DKIM and SPF to my OpenSMTPD setup as
> > I
> > have previously run with those, but I am in doubt.
> > 
> > I am thinking about the "worth" of those technologies?
> 
> OK for sending, waste of time for receiving validation.
> 
> SPF is grossly abused, and DKIM mail must be received before it can
> be inspected. Useless.
> 
> See the section "SPF found potentially useful" and the 1st comment
> of:
> http://bsdly.blogspot.co.uk/2007/07/harvesting-noise-while-its-stil
> l-fresh.html
> 
> OpenBSD's spamd + greyscanner rocks!
> 
> These helpers work with spamd for bulk trap address loading:
> http://web.britvault.co.uk/products/abersnuik/
> http://web.britvault.co.uk/products/spamdba/

I read something about distributing spamlist through bgp.
http://bgp-spamd.net/index.html

Someone tried ?

> 
> I've vastly modified greyscanner to check DNS PTR records & DNS
> RBLs. e.g:
> https://bitbucket.org/bonetruck/greyscanner/pull-request/5/
> 
> Nothing else is needed to filter incoming spam.

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