Milter-greylist

John Goggan <jgoggan@...> wrote:

> In fact, I'm not sure if you are making a joke with me and being sarcastic
> or I'm just missing something.  Isn't your suggestion basically not using
> the greylist EVER?  You are suggesting sendmail during the day without the
> greylist and nothing at night.  So -- when would I be using the greylist
> at all?

I'm not sarcastic, and it's just half a joke. If you stop sendmail, spam
sent by spam engines is lost, and mail from real SMTP server will get
queued and resent by the sender server.

So stopping sendmail at night will indeed reject a lot of spam. That's
not as efficient as greylisting because you accept spam when sendmail is
up. But if you don't need to receive mail at night and want to reject
nightly spam, stopping sendmail is really an option.

Of course, mail queued on sender servers while your sendmail is down may
be resent after some time, or it may be lost if the sender is
misconfigured, that's exactly the same problem you have with
greylisting.

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu@...