Re: domain literals

Roberto Alsina wrote:

> it's understood it should do that, but it's not explicit, unless I am
> reading wrong (or at the wrong place):
 
> 2.1.  The HELO Identity
[...]

That might be a part of "oral history" (hidden in the list archives :-)
that you've missed.  At some point in time there was a draft saying
that "weird" HELOs (also including domain literals) should be handled
as PermError (or similar) because nobody wants them anyway.

After some discussions that was dropped for several reasons:

- The S in SPF is for "sender", not "receiver"
- It's perfectly okay if a receiver accepts HELO [127.2.3.4] coming
  from a client with IP 127.2.3.4
- It's also okay if a receiver accepts domain literals where the IP
  doesn't match
- And some receivers claim that they're even forced to accept crap
  like "oemcomputer"
- As there is no "sender policy" for an IP, matching or otherwise,
  let alone for a "domain" oemcomputer, SPF is moot about this.
- Receivers are free to do whatever they like, but they can't claim
  that IP literals or weirder HELOs are "SPF errors" 

Frank (still interested in two "HELO museum" test cases :-)


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