Martijn Pieters schrieb:
On 1/17/06, Tino Wildenhain <tino@wildenhain.de> wrote:
Alternatively the ability to register trusted MTAs with an address could help and would be completely transparent for those who dont care.
Unfortunately the nature of open source communities around a domain name is such that locking down the number of IP addresses that are authorized to send @zope.org mail is a bad idea. Maybe not so much for the @zope.org domain right now; the problem is more prominent with @python.org for example, but in the future things can and will be different.
Actually my idea was to register email:authoritative-MTA And if a user does ot register his MTA with his email address, the check just cant be done and the email is handled as usual. But if there is an entry for an address it could be checked and the email denied in the "mail from:" phase. ++Tino