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Date:      Thu, 7 Aug 2003 09:00:30 -0500
From:      Doug Poland <doug@polands.org>
To:        "Roger 'Rocky' Vetterberg" <listsub@401.cx>
Cc:        questions@freebsd.org
Subject:   Re: ISPs blocking SMTP connections from dynamic IP address space
Message-ID:  <20030807140030.GA990@polands.org>
In-Reply-To: <3F3253B3.3080902@401.cx>
References:  <25533.63.104.35.130.1060186797.squirrel@email.polands.org> <3F3253B3.3080902@401.cx>

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On Thu, Aug 07, 2003 at 03:27:15PM +0200, Roger 'Rocky' Vetterberg wrote:
> Doug Poland wrote:
> 
> >Within the last two months both AOL and Time Warner Road Runner
> >have implemented port 25 blocks from hosts with IP addresses in the
> >"dynamic address space".  Time Warner claims other major ISPs
> >are/will be implementing the same policy.
> >
> >
> >A little help here?
> >
> >
> Sorry, but I cant help you here, I fully agree with AOL and the big
> guys.  We have to take some serious action against spam, 
>
I hate spam as much as the next guy.  But 

> piss a lot of people off, but as they say: you cant make an omelett
> without breaking some eggs.  I say block the dynamic address space,
>
This is where I disagree.  What is the "dynamic address space" anyway?
DSL, dial-up, and cable modem providers IP ranges?  This separates the
world into the "haves" and "havenots" based on static($$$) vs.
dynamic IP range.  So the big ISPs get to say,  
	
	"We will not accept a connection from a host, on port 25,
	unless the IP originates from an IP range we have decided is
	acceptable."

What happens when the ISPs decide,

	"We will not accept a connection from a host unless the MTA is on
	the approved list, i.e., Microsoft Exchange"


> block everything that lacks proper reverse dns
>
I have proper reverse DNS.  I don't get to connect because of this
"dynamic IP range" issue.  If one has proper reverse dns, should one
be blocked because the host IP comes from a "dynamic address space"?
Why?

-- 
Regards,
Doug



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