Re: [Asrg] [ASRG] SMTP pull anyone?
Steve Atkins <steve@blighty.com> Thu, 27 August 2009 03:30 UTC
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Subject: Re: [Asrg] [ASRG] SMTP pull anyone?
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On Aug 26, 2009, at 2:22 PM, Daniel Feenberg wrote: > > > On Wed, 26 Aug 2009, John Levine wrote: > >>> Rich, does ipv6 change any of this? >> >> I'm not Rich, but the open question at this point is how effective >> DNSBLs will be on IPv6. > > I think it unlikely that an IPv6 only MTA will ever have acceptance > even as wide as, for instance, MTAs with "pool" or "dial-up" in > their RDNS. IPv6 only MTAs will be refused by many MTAs. There are > simply too many IPv6 addresses to blacklist bad hats, and > blacklisting /48s would be a very broad brush. The advantage of IPv4 > is that the number of addresses is finite, and legitimate holders of > addresses are loath to waste them. I see this asserted a lot, but I don't really see much in the way of plausible arguments to back it up. If anything, some blacklist techniques are likely to be easier and more effective on IPv6 than v4 for the obvious NAT / dynamic assignment reasons. Cheers, Steve
- Re: [Asrg] SMTP pull anyone? John Levine
- Re: [Asrg] [ASRG] SMTP pull anyone? John Levine
- Re: [Asrg] [ASRG] SMTP pull anyone? Steve Atkins
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- Re: [Asrg] SMTP pull anyone? Bart Schaefer
- Re: [Asrg] [ASRG] SMTP pull anyone? Douglas Otis
- Re: [Asrg] [ASRG] SMTP pull anyone? Chris Lewis
- Re: [Asrg] [ASRG] SMTP pull anyone? Dave CROCKER
- Re: [Asrg] [ASRG] SMTP pull anyone? Douglas Otis
- Re: [Asrg] [ASRG] SMTP pull anyone? Chris Lewis
- Re: [Asrg] [ASRG] SMTP pull anyone? Jeff Macdonald
- Re: [Asrg] [ASRG] SMTP pull anyone? John Levine
- Re: [Asrg] [ASRG] SMTP pull anyone? Douglas Otis
- Re: [Asrg] [ASRG] SMTP pull anyone? Daniel Feenberg
- Re: [Asrg] [ASRG] SMTP pull anyone? Graeme Fowler
- Re: [Asrg] [ASRG] SMTP pull anyone? Rich Kulawiec
- Re: [Asrg] [ASRG] SMTP pull anyone? Jeff Macdonald
- Re: [Asrg] [ASRG] SMTP pull anyone? Steve Atkins
- Re: [Asrg] [ASRG] SMTP pull anyone? Chris Lewis
- Re: [Asrg] [ASRG] SMTP pull anyone? Alessandro Vesely
- Re: [Asrg] [ASRG] SMTP pull anyone? Tim Chown
- Re: [Asrg] [ASRG] SMTP pull anyone? Rich Kulawiec
- Re: [Asrg] [ASRG] SMTP pull anyone? Douglas Otis
- Re: [Asrg] [ASRG] SMTP pull anyone? Daniel Feenberg
- Re: [Asrg] [ASRG] SMTP pull anyone? Douglas Otis