spf-discuss
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Re: Protecting more than just the envelope-from

2003-10-16 18:18:34
On Fri, Oct 17, 2003 at 12:59:38AM +0100, Phil White wrote:
| On Thursday 16 October 2003 22:06, Meng Weng Wong wrote:
| 
| > 2)  HELO paypal.com
| >     MAIL FROM:<>
| 
| This should not be a SPF 'thing'.
| it is already in rfc2821 §4.1.4
| 

4.1.4

   An SMTP server MAY verify that the domain name parameter in the EHLO
   command actually corresponds to the IP address of the client.
   However, the server MUST NOT refuse to accept a message for this
   reason if the verification fails: the information about verification
   failure is for logging and tracing only.

SPF strengthens para 2 making rejection acceptable.

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