Re: More sorbs blacklisting
On Mon, 10 Jul 2006 17:45:01 +0200, Anders Breindahl
<skrewz@skrewz.dk> wrote:
>However you edited out the interesting part. Couldn't one:
>After HELO:
>- forward and reverse DNS match
>- the SPF records of the HELO'ed domain allows delivery from the
> connecting host
>If any of the two above, accept the connection. As said, wouldn't that
>give home users a way of authenticating themselves?
SPF is good for preventing sender domain forgery, but spammers can
just setup real domains and SPF records to abuse what you suggest.
That's why many who publish SPF records, don't use it to stop spam.
I don't expect SPF to gain much traction, beyond the early adopters
who had high hopes for it.
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