6 May
2006
6 May
'06
1:57 a.m.
On Friday, May 05, 2006 3:45 PM -0700 Marc Perkel <marc@perkel.com> wrote:
SPF breaks email forwarding.
While SPF is not a panacea, it does improve spoof detection.
An even better guarantee is a digital signature.
Sending over IMAP doesn't provide any anti-spoofing assurance that authenticated SMTP doesn't already provide.