[Mailman-Users] Best way to slow down all the spam to my lists?

[Chromatest J. Pantsmaker]

I had sent some test email from gmail and several hours later those test
messages didn't pass.  Maybe I goofed something along the way.

On Fri, Dec 13, 2019 at 9:04 PM Mark Sapiro <mark at msapiro.net> wrote:

> On 12/13/19 7:23 PM, Chromatest J. Pantsmaker wrote:
> > I think I'll look into this next.  It seems that the postgrey
> > implementation that I followed from a previous email has stopped the
> spam,
> > but it's also stopped all other mail also!  doh!
>
>
> If postgrey is working as it should, it will initially respond to all
> mail with a 4xx (retryable) status. The theory is spambots won't retry,
> but legitimate MTAs will, usually after a delay of up to 15 minutes or
> so, but some more than an hour.
>
> As postgrey learns, it will remember triplets (sender, sending IP,
> recipient) and not delay them and in addition will whitelist domains
> that retry successfully more than a few times.
>
> Thus, after time, the delayed mail will become less frequent.
>
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan
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