from the mxcomp list:
On Fri, Aug 27, 2004 at 08:01:16PM -0400, Sam Varshavchik wrote:
|
| The purpose of this message is to clarify my plans for any deployment of
| the Sender-ID specification in Courier (http://www.courier-mta.org).
|
| Microsoft has made certain patent claims on the Sender-ID specification.
| Microsoft has issued the IPR disclosures and royalty free license required
| by the IETF. It appears that IETF's contemporary policies do not prevent
| the sponsor/advocates from including patented IP material into
| standards-track specifications, without even requiring the sponsor to
| actually enumerate and identify their intellectual property; a mere claim
| of the existence of some nebulous IP rights is sufficient, which can be
| revealed at any point in the future, at the sponsor's discretion.
|
| The current development version of Courier implements the original
| SPF-classic specification, that predates Sender-ID. This will be rolled
| into a forthcoming release. I'm quite pleased with the results so far --
| there are a lot of classic SPF records in existence, as witnessed by my
| mail logs :-)
|
| It will not be possible for me to implement Sender ID in Courier. Courier
| is licensed under the GPL. The FSF already flatly stated that Microsoft's
| IP license is not GPL compatible. I reviewed the most recent version of
| Microsoft's proposed IP license, and I've reached the same conclusion. For
| this reason Sender ID cannot be implemented in Courier; Courier's
| implementation will be limited to the unencumbered SPF-classic.
|
| --
| Sam Varshavchik
| http://www.courier-mta.org
|