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Re: Greylisting for @debian.org email, please

Wouter Verhelst <wouter@debian.org> writes:
> What's painful about it?
> It stops a lot of viruses and spam, with no false positives. What's the
> problem?

These are common misapprehensions about greylisting. Unfortunately:

It has false positives. /var/lib/greylistd/whitelist-hosts lists a
selection of mail servers that do not handle greylisting properly. There
are others as well. Only if the person who sent the mail phones up and
says "why didn't you answer my mail" do you stand a chance of
discovering that another mail server is broken.

It delays mail from people who haven't mailed you before. This is
*guaranteed* to cause senior people in the company to come knocking on
your door within hours of you turning it on.

Otherwise, I'd use it :->

cheers, Rich.

rich walker         |  Shadow Robot Company | rw@shadow.org.uk
technical director     251 Liverpool Road   |
need a Hand?           London  N1 1LX       | +UK 20 7700 2487

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