OT (again): SA-SPF opinion

[Ugo Bellavance]

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Steve Campbell wrote:
> I'm thinking about catching up and implementing SPF. I find that I must use
> SRS also. Although it doesn't look that difficult to put in place, other
> than deciding what my TXT records should say, I'm wondering about one aspect
> of this all.

Setting SPF DNS records is definitely worth the effort.  The more people
will have SPF records, the better the results will be on our spam filters.

>
> Does the SPF facility in SA mimic what sendmail would perform using
> spfmilter on the receipt end of things? Can anyone offer an idea of what
> might be a good solution to all of this and what they might be using with a
> sendmail 8.12 box? There seems to be a very limited set of tools to use for
> all of this.

I felt that SA's SPF rules are not very convincing, and I didn't feel
like playing with the scores, so I implemented spfmilter.  I decided to
block any message that would have a 'fail' result.

I have written a doc for implementing the milter on FC1, please let me
know if you want to see it.

I have a low-volume server, but about 3% of incoming mail are blocked at
the MTA level by this milter.

Regards,

Ugo

>
> Thanks
>
> Steve Campbell
> campbell at cnpapers.com
> Charleston Newspapers
>

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