> please don't, or at least check spf before spamhaus. > the quality of their data is at best questionable, > and there is no (usable) way to correct it.
the problem is that spf only validates that the sender is an allowed sender. this is ineffective against backscatter attacks. i've gotten as many as 500 backscatter spam in 4 hrs. so this is a significant issue for me. - erik
