> Agreed. > > We use sendmail, and check our DNSBL's their, it is much more efficient to > use them before we ever engage SA. It is extremely rare to find an IP that > lands on a reputable DNSBL and in those cases we can whitelist. Of course > most of our traffic is B2B, not sure how effective this would be in B2C or > C2C.
What do you use in sendmail to check the blacklists? And do you use scoring or just direct block when on a BL?
