[ppml] Incentive to legacy address holders

[Owen DeLong]

What would prevent the legacy holders from coming together and
asking IANA to delegate those in-addrs to an alternate server?

Owen

On Jul 6, 2007, at 10:53 AM, mack wrote:

> One way to add incentive to legacy address holders would be to  
> withdraw
> reverse DNS support.
>
> We can assume most legacy address holders use that space for a mail  
> server.
> Most mail servers are configured to require a matching reverse DNS  
> before
> they will accept mail from an ip address.  This is particularly  
> true for
> SPF records and other mail authentication schemes.  I am sure there
> are other applications that similarly require reverse DNS.
>
> Withdrawing reverse DNS would be a moderately strong motivator for  
> legacy
> address holders with a large number of mail servers.  Losing e-mail  
> is very
> costly for most businesses.  This could very easily cover the cost  
> of coming
> into compliance for some percentage of legacy address holders.   
> When e-mail
> stops working people pay attention.
>
> This is not as draconian as dropping them from whois or reissuing  
> their space.
> Combined with an appropriate carrot such as fee waivers this could  
> be effective.
>
> This of course should be after some outreach is attempted.
> A percentage of legacy space is definitely abandon and there should  
> be some
> effort to reclaim it. This could be a preliminary step in reclamation.
>
> LR Mack McBride
> Network Administrator
> Alpha Red, Inc.
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