Henrik K put forth on 9/28/2010 12:28 AM: > On Mon, Sep 27, 2010 at 03:12:01PM -0500, Stan Hoeppner wrote: >>> >>> Snowshoe spam will most probably pass greylisting too. Better not >>> clutter greylisting database with useless things. Have the blacklists >>> block'em instead. >> >> I don't follow your logic here. Yes, most snowshoe is sent from real >> MTAs, not bots, so greylisting won't stop it. However, dnsbls and local >> block lists aren't very effective against snowshoe either, although >> Spamhaus DBL is getting much better WRT snowshoe. I have a local >> snowshoe cidr table I've been building for 2 years and it works rather >> well as I see maybe 1 snowshoe in the inbox every two weeks or so. >> However, most people probably don't have such a local snowshoe blocking >> list. > > Umm, what's YOUR logic here? Greylisting won't stop it, dnsbls won't stop > it? So I guess it's ok to blindly greylist stuff in case it "happens" to > stop it?
Of course I'm not advocating folks blindly greylist. I promote super-selective greylisting, and have many times on this list. The point I was making is that SPF is not a solution for making a reject/ok determination as an isolated smtpd test. It's only useful for scoring systems. Greylisting in isolation won't stop snowshoe either. Again, it is useful in blocking snowhoe if used in a scoring system such as SA. >>> So OP's request is valid IMO. >> >> Shooting mail straight into the inbox based on an SPF pass is not a >> valid strategy, but a recipe for more spam in the inbox. SPF is >> properly used in a scoring system within a policy daemon or external >> content filter such as SA, same as DKIM etc are. > > Shooting mail straight into inbox? At some point you seemed to understand > the original question, but again you seen to have missed the point? He was > asking to bypass greylisting, which is fine. How does that make it STRAIGHT > into inbox? Michal Bruncko put forth on 9/26/2010 4:24 AM: > It is possible in some way to configure postfix, that SPF Passed mails > will be automatically accepted with postfix without greylisting? Maybe I misunderstood the OP's use of the term "automatically accepted". -- Stan
