VonEssen, John wrote:
SNIP
If you go this route then, maybe it might be easier to just aggressively post invalid email addresses all over the internet. By invalid, I mean a mx record exists, but the address will result in a 550. As a result the harvesting of addresses will become a dirtier process, yielding poorer lists.
All this relies on many assumptions. We assume spammers regularly harvest addresses off usenet. We also assume that they clean their list when address appears to be bad. Has anybody tested this? As an experiment, I was thinking about posting a spamtrap address, and then see how long it takes for a sizable amount of spam to come in. Then, remove the user, resulting in 550. Then monitor inbound attempts for that address and see at what rate the traffic falls off. For all we know, maybe spammers don't clean their lists, and they are already wasting resources on bad addresses.
John
Hi John,
I have addresses that have found their way onto spammer lists that never existed here. They're odd typos and mispellings that I caught in my logs. I turned them into instant spamsign traps to build my local blacklists. They NEVER clean their lists, they just resell them on the "Millionz CDZ" to the other potential Biznizmen. As an example read about poor "Nadine" http://www.honet.com/Nadine/default.htm
Also along this thread for everyone esp. Chris,
A minor word of caution when you junp into the spam-l mailing list.
Spend a Loooong time lurking before you start posting. The folks there are mostly front line high level BOFH admins and can get a bit unruly and venomous. If your up for a real adventure Google on NANAE in usnet groups. Don't forget your NOMEX underwear.
Scott
-- Scott V. Blomquist,A-SA-CN-NRK TINLC(tm) #2598 ITI/Bear&Co Rochester, VT 802-767-3174(v) 802-767-3726(f) "Any technology sufficiently advanced is indistinguishable from Magic." A. C. Clarke
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