I'm giving up on SPF for a few months. All of the SPF
implementations are buggy and extremely difficult to implement.
No SA on this earth has two days to screw around downloading one
Perl module after another only to discover yet another
undocumented dependency. SPF will not be adopted until cleanly
packaged, bug-free, and comprehensive solutions are available.
Just one would do the trick! I'm amazed I gave it so much time.
I finally got the Milter working with a 'fallback' record only
to discover that you can't whitelist senders using the
'access.db', and that no other simple whitelisting capability
exists. The 'sendmail' milter whitelist patch does not work.
Useless!!!