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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