On Tue, Apr 12, 2016 at 4:30 AM, @lbutlr <krem...@kreme.com> wrote:

>
> > On Apr 10, 2016, at 5:37 PM, Curtis Villamizar <cur...@orleans.occnc.com>
> wrote:
> >
> > In message <b1132232-5b45-4a7b-8fb8-f240cea1f...@kreme.com>
> > "@lbutlr" writes:
> >>
> >> On Apr 10, 2016, at 10:24 AM, Curtis Villamizar =
> >> <cur...@orleans.occnc.com> wrote:
> >>> postscreen_dnsbl_sites =3D
> >>>     list.dnswl.org*-5
> >>>     # followed by some blacklist sites
> >>
> >> It was my understanding that eh the order of test said not matter
> >> because all the dnsbls listed would be checked, a final score
> >> computed, and then that compound number passed along to postscreen.
> >
> > Nobody ever said there was an order dependence.
>
> “Followed by” does imply that order may be significant.
>
> >
> > btw- I don't think list.dnswl.org is a viable workaround for the post
> > 220 problem.  This just affects the dnsbl score which would already be
> > zero.  The post 220 checks would still be run before putting the gmail
> > server IP into the temporary whitelist.  Manual maintenance of
> > postscreen_access is the only thing that would work.
>
> Isn’t it that if an IP hasn’t been seen and scores 0 postscreeen sends a
> temporary failure, so scoring it negative means it gets an immediate pass?
>
> I know that enabling post screen and dnswl stopped the issues with large
> mailers on my system.


Curtis:

+1 to the suggestion of properly using dnswl.org. But if you'd also like to
automatically scan the SPF records of mailers you trust (including Gmail)
and build an up-to-date Postscreen whitelist based on their published SMTP
servers, then Postwhite maybe of interest to you:

http://www.stevejenkins.com/blog/2015/11/postscreen-whitelisting-smtp-outbound-ip-addresses-large-webmail-providers/

SteveJ

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