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Jean-Philippe Pialasse aka Unnilennium <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #1 from Jean-Philippe Pialasse aka Unnilennium <[email protected]> 
---

First, I want to state I will not oppose to the integration of new code, I just
want to highlight what might be bad practice. 

(In reply to Selwyn Rosenstein from comment #0)
> A lot of spammers use a block or complete subnet of IP addresses.
> We want to block the entire subnet or range of addresses.

The whole ? Only for them ? No acceptable client present in it, are you certain
?

I personally had the bad experience of ITs at a Canadian university  who
decided that it would make their life better to ban a whole subnet because they
received a lot of SPAM from numerous IP inside it. This subnet is located
abroad so they might have think that no one abroad should have any need to send
mail to a university recruiting students abroad, or having some new professors
collaborating abroad, or phDs looking at a job at their University.

I was at this time collaborating with some of their professors to publish an
article with deadlines, and also applied for a job there. 
Everything was working fine for years and one day, no answer from any of my
recipients. Of course I did receive notice of undelivered mail but after days
of having my server to try, which when you have deadlines make you lose a lot.

Another experience with a publishing company that decided to use ban of whole
network subnets using RBL /DNSbl but implementing them on their firewall
instead of their smtp. Good idea at first, you will avoid unnecessary hit of
their smtp server, but bad practice because again I was in this subnet.

So avoid "solutions" that consist to throw the baby with the water before even
check if there is a baby.

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