In <000701c4ee31$f2bdcdf0$6401a8c0(_at_)hdev1> "Hector Santos"
<winserver(_dot_)support(_at_)winserver(_dot_)com> writes:
So what this means is:
SPF ready SMTP clients (senders) MUST use FQDN client domain names
(HELO/EHLO)
This is already a requirement in RFC2821 as per section 3.6. (I
just double checked.)
-wayne