Quoting Matthias Leisi <[EMAIL PROTECTED]>: > > I couldn't say for sure what a safe level of queries would be. If I were > > to guess, I'd say somewhere under 20,000 per 24 hour period. > > Speaking for dnswl.org, we consider sites[*] with > 100k queries per 24 > hour as "heavy users" who should rsync our data and run a local mirror.
This pretty much agrees with SURBL policies. However IMO blacklist operators should probably make exceptions for open source anti-spam research purposes such as the SA mass checks and allow rsync access for your test servers' local DNS servers. Spamhaus ought to see the value in that too. Cheers, Jeff C. P.S. SURBL is starting to ask for donations from large ISPs and anti-spam vendors. We intend to use that to offset some of our time and expenses while continuing to provide free DNS access for smaller users, i.e., something like the previous Spamhaus model.
