FWIW, there's been an interesting little thread on SPF
problems caused by non-SPF stuff in TXT here:
The problem described there looks like an implementation error only. The
parser that Michael was using that failed didn't take into account additional
records with non-SPF information.
While RFC 1464 is one way to distinguish useful information from not useful
information, it isn't the only way. Other unique tokens identifying MARID
records would work.
PGP key (0x0AFA039E):
Sometimes it's hard to tell where the game ends and where reality bites,
er, begins. <http://vmyths.com/resource.cfm?id=50&page=1>