| From: | Dave Page <dpage(at)postgresql(dot)org> |
|---|---|
| To: | "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org> |
| Cc: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, pgsql-www(at)postgresql(dot)org, Andrew Sullivan <ajs(at)crankycanuck(dot)ca> |
| Subject: | Re: [CORE] SPF Record ... |
| Date: | 2006-11-19 20:08:39 |
| Message-ID: | 4560B9C7.4000202@postgresql.org |
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| Lists: | pgsql-www |
Marc G. Fournier wrote:
> Until someone devises the 'perfect solution to spam', I would think that a
> series of 'less then perfect ones' would at least help combat it ...
And that's a perfectly fine idea, except when one of those partial
solutions can have undesirable side effects. In the case of SPF we've
heard of at least two so far:
1) When used without ?all, those scoring messages using SPF may end up
blocking legitimate messages from non-listed servers.
2) SPF may be used as a mechanism for DNS attacks.
Regards, Dave.
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