Alessio Cecchi wrote: > Hi, we use www.invaluement.com > > - ivmSIP to block IPs at SMTP level > - ivmSIP24 and ivmURI in Spamassassin with custom score > > Also b.barracudacentral.org is good and with low FP. > > Probably zen.spamhaus.org is the best dnsbl but is too expensive for us. > Invaluement SIP is almost comparable to Zen as performance but much less > expensive.
We use both, but we've found the Invaluement is more of a good complement to Spamhaus rather than a replacement - there's not all that much overlap. We only reject with Spamhaus, but we keep those rules enabled in SA due to customers forwarding mail from their third-party webhost to their ISP email account with us - I've added trust path entries for many of these users so that the DNSBLs are checking against the right "originating" IP. -kgd
