On 21/02/2010 19:05, Wietse Venema wrote:
Jonathan Tripathy:
Hi Folks,
To prevent spammers sending email from spoofed addressed that appear
from my domain, I currently use SPF. I'm having second thoughts about
using SPF, so is there any other way to make sure that only
authenticated users can send email from my domain?
Receivers may "verify" the message origin with SPF, DKIM, S/Mime,
or other information that you make available to those receivers.
But nothing requires that receivers do those things.
Wietse
Sorry I forgot to state that im only concerned with MY server here. For
example, I don't want someone to telnet to MY postfix server, and give
m...@mydomain.com for both sender and receiver
