--On 1 April 2006 10:33:41 +0100 David Woodhouse <dwmw2@???>
wrote:
> On Sat, 2006-04-01 at 09:19 +0200, David Saez Padros wrote:
>> you need to compile and install libspf2 before compiling exim
>
> As discussed before, however, you'd probably do better just to disable
> the SPF support in Exim. It's not something you should be using to
> reject mail.
>
> http://david.woodhou.se/why-not-spf.html
>
> --
> dwmw2
But, it is potentially useful for whitelisting. If there are domains that
you trust, then SPF can be used to determine whether the email is coming
from their approved IP addresses. If they are, then you may be able to
accept the email without spam filtering. For example, I'd be happy to
accept mail without spam filtering from educational domains (*.ac.uk,
*.edu) when I'm sure that the email is coming from an institutional server.
SPF may not be ideal for it's intended purpose, but that doesn't mean that
it has no useful applications. Where your article says "If you use SPF, you
will be causing genuine email to be rejected." instead you should say "If
you use SPF _to_reject_email_, you will be causing genuine email to be
rejected."
--
Ian Eiloart
IT Services, University of Sussex
