Re: [Exim] Blacklisting dynamic IP ranges versus dyndns.org

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Autor: Dan Egli
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A: Matthew Byng-Maddick, Exim User's List
Assumpte: Re: [Exim] Blacklisting dynamic IP ranges versus dyndns.org
A large number of people who are not in the IT industry use Hotmail/Yahoo.
And some in the industry use it for PERSONAL mail. But when it comes to
sending things that you need to watch, that's totally different, imho.
----- Original Message -----
From: "Matthew Byng-Maddick" <exim@???>
To: "Exim User's List" <exim-users@???>
Sent: Thursday, October 31, 2002 2:09 AM
Subject: Re: [Exim] Blacklisting dynamic IP ranges versus dyndns.org


> On Thu, Oct 31, 2002 at 02:22:34AM +0000, Dan Egli wrote:
> > I can think of a good reason:
> > TRACKABILITY! I have a DynDns address (as you can see from my return

email
> > address), and I relay a lot of mail through Exim on this box. The reason

I
>
> This logic is great until I realise that my mail server won't trust you
> due to the fact that you're coming from a different IP address each time,
> so it's assuming that multiple different MTAs are trying to connect to it.
> Or, more worryingly, if someone runs an accept-all MTA on their dynamicdns
> connected box, and happens to get your IP address before your dyndns has
> updated itself, or perhaps worse, they bounce your mail, and your customer
> rings up asking why your mail isn't working.
>
> If you want your mail to be flakey, that's your prerogative, but I don't
> think that flakey mail increases "trackability". After all, large numbers
> of people seem to use hotmail/yahoo.
>
> MBM
>
> --
> Matthew Byng-Maddick         <mbm@???>

http://colondot.net/
>
> --
>
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