spf-discuss
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Re: SRS requirements

2004-01-14 12:35:06
On Wed, Jan 14, 2004 at 01:27:00PM -0600, wayne wrote:
| 
| The big problem with any sort of database scheme is trying to
| coordinate all MTAs about the status of the rewritten headers.
| 
| 
| 
21asd39kw8x02(_dot_)dk8w09llwr(_at_)database01(_dot_)bounce(_dot_)pobox(_dot_)com
| 

You can still validate the entire localpart, even if it contains a key,
without reading from the database at all, as long as the localpart
contains a signature.  So half would be a key, half would be an HMAC
thingy that covered the key, and an MTA would only have to know the
secret to accept/reject it.

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