On Wed, Nov 23, 2005 at 06:15:43PM -0500, Hector Santos wrote:
5.2.5 HELO Command: RFC-821 Section 3.5
The sender-SMTP MUST ensure that the <domain> parameter in a
HELO command is a valid principal host domain name for the
client host. As a result, the receiver-SMTP will not have to
perform MX resolution on this name in order to validate the
HELO parameter.
The HELO receiver MAY verify that the HELO parameter really
corresponds to the IP address of the sender. However, the
receiver MUST NOT refuse to accept a message, even if the
sender's HELO command fails verification.
How more explicit can it get? it says "MUST NOT" not "SHOULD NOT"
Yes it does. It also specifies a clear boundary for which this
MUST NOT is valid. You have just shown an example that does not
help your case.
I am not going to repeat the rest. If you are still ignorant after
a gazillion posts about this, you will still be ignorant after a
gazillion plus one.
Yes: I used the word ignorant. Be glad, I could also have used obstinate.
-------
Sender Policy Framework: http://www.openspf.org/
Archives at http://archives.listbox.com/spf-discuss/current/
To unsubscribe, change your address, or temporarily deactivate your
subscription,
please go to
http://v2.listbox.com/member/?listname=spf-discuss(_at_)v2(_dot_)listbox(_dot_)com