please implement SPF

I ain't so sure of SPF. I have to agree with grinder on this one and figure it to be one of those "looks great on paper but sucks in the real world" deals.

Personally for myself I'd have to totally re-engineer how I do email right now. I have a deal going with my hosting provider where they provide me an MX to my cable modem attached machine at home. When I send mail out now I have to deal with folks that won't accept mail from my machine because its IP address is in the Comcast space. Ironically enough one of them is AOL! Yet I'm a legitimate user of email not a spammer but I am being "punished" along with the bad apples. So I

Change my provider(s)? There aren't any alternatives to broadband access in my area other than maybe getting a T1 at around US$800 a month. More that I can afford.

I think there are better ways of stopping spam that don't include breaking what works.