10 Mar
2005
10 Mar
'05
5:01 p.m.
Jeff (and list),
I'm worried that spammers can use SURBL to identify honeypot email servers by using unique subdomains. A spammer must merely send a unique subdomain URL to every address on their list, and if that unique subdomain is blacklisted in SURBL, they have identified a potential honeypot and will no longer send spam to that address/server.
It is therefore my humble opinion that only the second-to-top domain name should be listed in SURBL, and not any of the subdomains.
Thoughts?
-Matthew Wilson