Well there are a couple things here. First, it doesn't matter if TMDA existed before the patent was issued. When it comes to patents, it's basically the first one to file the patent is the one who has the right to claim it. So if TMDA was first and never filed, then they don't have a leg to stand on.
However, it looks like while zoemail's addresses LOOK like TMDA's keyed addresses, the real story behind TMDA is challenge/response. Keyed addresses are only a way to signal TMDA that certain mail does not have to be challenged because it comes in already authenticated. Zoemail does not use any challenge/response system, and is solely based on the principle that outgoing mail to a new address for which a key was never created will automatically create a new key for that one address. If spam starts coming in from that key, then you know the person/list/company you sent mail to then distributed your special address and you can simply revoke that one and the rest of your mail is unaffected. So based on your options. I think #3 would be the closest choice. Hope this helped. And if I am wrong about any of my assumptions/observations, I apologize and would hope others might make it clearer. David --- Hannu <[EMAIL PROTECTED]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi! > > Just wondering... www.zoemail.net uses keyed address system that is > somehow similar to tmda keyed address system. Their web page claims > the system is patented by AT&T. > Take your pick: > 1. Their patent is illegal, tmda existed before patent > 2. tmda uses their patented system > 3. the systems are enought different, no conflict. > > - -- > Send replies to: > [EMAIL PROTECTED] > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.4 (GNU/Linux) > > iD8DBQFABOf0uA3ghgc3fUsRAqgwAJ4n6G+Een8HSi9ReIpUzpLYQO//hgCgj7fT > gUpCwT7CT9A7U5oMJzk4obs= > =J+qY > -----END PGP SIGNATURE----- > > _____________________________________________ > tmda-users mailing list ([EMAIL PROTECTED]) > http://tmda.net/lists/listinfo/tmda-users __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes http://hotjobs.sweepstakes.yahoo.com/signingbonus _____________________________________________ tmda-users mailing list ([EMAIL PROTECTED]) http://tmda.net/lists/listinfo/tmda-users
