OK - I had thought this little bit of restriction would work but if that
doesn't work then SPF is basically useless then? I had thought it could
at least get rid of SOME spam reliable for those who used -all but it
appears that even that is not reliable.
So - am I missing something here or is SPF broken and if so - why are we
interested in it?
David Woodhouse wrote:
>On Sun, 2005-01-02 at 13:54 -0800, Marc Perkel wrote:
>
>
>>Lets say that a person has an email address joe@??? and that
>>email forwards to an account on my server joe@???. Will there be
>>any errors relating to domain1.com being allowed to forward the message
>>to domain2.com if the SPF record is restrictive?
>>
>>
>
>Yes, there will be errors.
>
>
>
>>Is SFP smart enough to look at all the received lines and figure it out?
>>
>>
>
>No, SPF is fundamentally broken in that respect -- it would have you
>throw away the mail you're asking about, if the original sender was
>silly enough to publish an SPF record ending in '-all'.
>
>
>
