26 Jul
2004
26 Jul
'04
5:22 p.m.
I'd be extremely surprised if anyone were planning to block all mail from non-SPF-using sites any time soon. However, it'll still be useful as an additional data point in a filtering decision process.
Indeed, running the spfmilter/libsfp2 combo in "--markonly" mode and noting the details of the inserted headers has been instructive enough to justify the couple of minutes spent setting it up. Stephen