Re: [exim] Defer as a spam filter

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Author: Tom Kistner
Date:  
To: Carl Inglis
CC: Exim-Users \(E-mail\)
Subject: Re: [exim] Defer as a spam filter
Carl Inglis wrote:

>>This is called "greylisting" and it pretty much sucks. :)
>
> This is, of course, Tom's opinion. :-)


Some wisdom to back up my rant:

Greylisting is (still) very effective. However the side effects are
nasty. It is also an antisocial method. Clogging up remote queues,
delaying bona fide emails ...

If you run a small shop, get the parameters right and are prepared for
one or the other complaint, you can do it. But I'd never implement it
for a whole University.

/tom