15 messages in net.sourceforge.lists.courier-usersRe: [courier-users] DomainKeys on Cou...
FromSent OnAttachments
Vini EngelDec 12, 2006 3:17 pm 
Sam VarshavchikDec 12, 2006 4:53 pm 
Sergiy ZhukDec 12, 2006 5:18 pm 
JeffDec 19, 2006 9:30 am 
Sam VarshavchikDec 19, 2006 3:33 pm 
Alessandro VeselyDec 20, 2006 1:41 am 
Sam VarshavchikDec 20, 2006 3:58 am 
Bernd WurstDec 20, 2006 10:01 pm 
Malcolm WeirDec 20, 2006 10:32 pm 
Alessandro VeselyDec 21, 2006 1:36 am 
Harry DuncanJan 14, 2007 4:46 am 
Julian MehnleJan 14, 2007 6:10 am 
Sam VarshavchikJan 14, 2007 6:29 am 
Sergiy ZhukJan 14, 2007 4:55 pm 
Vini EngelJan 16, 2007 6:29 am 
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Subject:Re: [courier-users] DomainKeys on Courier?Actions...
From:Alessandro Vesely (ves@tana.it)
Date:Dec 20, 2006 1:41:44 am
List:net.sourceforge.lists.courier-users

Sam Varshavchik wrote:

Jeff writes:

Hi guys, I was wondering if anyone has done anything related or knows if DomainKeys will be implemented on Courier any time in the future?

No, since DomainKeys is patented by Yahoo, on GPL-incompatible terms.

I believe it is dual-licensed under either Yahoo's license -or- GPL, so actually, it is GPL-compatible.

From http://antispam.yahoo.com/domainkeys :

Yahoo!'s DomainKeys Intellectual Property may be licensed under either of the following terms: - Yahoo! DomainKeys Patent License Agreement - GNU General Public License version 2.0 (and no other version).

Or am I misreading something?

This is something new. Originally Domainkeys was released only under Yahoo's Patent License, exclusively. The Sourceforge project page still lists the Patent License as the exclusive distribution terms.

According to Wikipedia, http://en.wikipedia.org/wiki/DomainKeys the GPL option is there "for the purpose of the DKIM/IETF Working Group". That note has been added to the wiki on 21:07, 12 January 2006 by an anonymous user connecting from 66.228.162.107 (newspend-mac.corp.yahoo.com).

The DomainKeys Patent License Agreement is still not mentioned in http://www.gnu.org/licenses/license-list.html

Well, this certainly removes that showstopper.

However, I'm concerned about that "and no other version". GPLv3 should come in a few months and Courier's Copyright holder may want to use it. Then, there will still be an incompatibility: would the DomainKeys Identified Mail (DKIM) addition have to be reverted in that case?