Hi SURBL-Discuss,
allow me to introduce myself. I've been programming for over two decades (e.g. DR DOS, Novell iFolder). Since 1993 I live in Japan. I joined the fight against spam a little over a year ago, when I started developing my own filter.
I soon ended up with a continuous stream of interesting data about spam, which I thought might be useful to others. Last October I started publishing domain names and WHOIS details for spam domains that my filter found.
In May I finally launched jwSpamSpy 1.0, my client-based filter, of which I might develop a server-based equivalent in the future.
The spam data comes out of about a dozen mailboxes / spamtraps with a total of about 600 spams a day, which yield about 70 new blacklisted domains per day on average (If I had more spamtraps I could harvest even more data). jwSpamSpy also harvests data from NDNs for spoofed-sender spam. If anybody gets a lot of bounces, I might be interested in that at some point :-)
The blacklist data is published several times a day. Since January I've been distributing deltas to my blacklist via a mailing list (one posting per day).
In addition to domain names, I harvest 419er addresses for the purpose of blocking 419 scam mails. I've collected some 6300 "419" emails in little over a year so far.
Raymond and Jeff recently invited me to provide my data feed for SURBL. I agreed because anything that helps people block more spam is worth supporting. There was just one catch: more than a year ago I had started the list by seeding it with other people's lists, which in hindsight was not a good idea, as I couldn't vouch for all entries and occasionally had to drop entries. Recent entries (from early December 2003 onward) use a quite rigorous protocol that has served me well. I have had but a single complaint about more than 6000 domains from that data set.
Regards
Joe Wein