Mark Nipper wrote:
> On 10 Dec 2009, Marc Perkel wrote:
>
>> I'm not going to do SRS. I think SPF is a flawed technology.
>>
>
> Why would you ask about something, and then almost
> immediately turn around and call it a flawed technology?
>
> If you have a controlled environment where you know all
> mail for a domain (or domains) is flowing through a select set of
> mail servers, then SPF is a great solution and can easily help
> reduce the amount of garbage.
>
> If this scenario does not describe your mail environment,
> then don't publish SPF records (or publish extremely lax
> records). However, I think this scenario probably describes a
> large number of mail providers.
>
>
Sometime flawed technologies still have uses. SPF breaks email
forwarding. But using that flaw I may be able to detect forwarding
sources through SPF failures. The idea being that if it's legitimate
email but SPF is wrong then the message was likely forwarded from a
legitimate source.
