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Minor isn't. It's a pardigm change

2008-03-30 17:01:56

John Levine wrote:
But since everyone's going to have to add AAAA records anyway to move
to IPv6, it seems to me this is the least painful time to make them add
MXes for their mail servers as well.

Folks are missing a very basic point:

To run an email server, today, an existing host only needs to make the server software operational. No other change is required. For example, no coordination with DNS administration is required.

The "simple" algorithm change that permits only the use of an MX, for v6 email address queries changes that.

   This is a fundamental change in the complexity of email operations.

In other words, the change moves the MX from being an administrative convenience to instead being a core requirement, ie, barrier to deployment.



  Dave Crocker
  Brandenburg InternetWorking

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