spf record checker

Roman Gelfand <[email protected]> Wed, 25 Sep 2013 11:48:37 -0400
Newsgroups gmane.mail.spam.spf.discuss
Message-ID <CAJbW+rmv98QK4dDe4dG=RvvcXcbMJuM4-hWxV06-XazEFoeJ9A@mail.gmail.com>
I am including ipv4 subnet entries in my spf record.  if email makes
serveral server hops before it's final destination, is it a correct
behavior of spf checker to check each hop's ip address or spf checker
should be only checking final from hop?

Thanks in advance