On Fri, Apr 04, 2008 at 03:10:59PM +0100, Mark Rogers wrote:
MJ Ray wrote:
What I don't understand is why haven't you set this up using TXT records in your DNS and told us how to try it?
It seems too simple...
Seriously, though, I looked at stuff like SPF and know its flaws. I just want a way that I (or anyone else) can send email, through normal SMTP, such that the recipient, should they choose, can verify that I sent it, regardless of whether they know who I am or have any previous relationship with me. Just that if it says it comes from example.com, then it did come from example.com.
Isn't there an issue with what exactly "example.com" means? There would surely be issues with domains such as bt.com which probably have tens of thousands (if not hundreds of thousands) of users and probably no 'single source' such that mail from them could be signed consistently.
Come to that even one of my domains, isbd.net, resides on two totally separate (and separately administered) machines.