On Fri, 15 Jun 2007, Marc Perkel wrote:

> Shane Williams wrote:
>> Unless you have some other reliable source of statistics regarding how
>> various entities choose MX records, I'd expect blacklisting this way
>> is likely to garner significant false positives.

> It appears that some spammers hit the highest mx first and some spammers hit
> random mx records. But legit email would not hit these higher mx records so
> I doubt I'll have a problem with false positives.

It appears that way based on what? If you have some data that
demonstrates this pattern, please share.

Public key #7BBC68D9 at | Shane Williams
http://pgp.mit.edu/ | System Admin - UT iSchool
All syllogisms contain three lines | shanew@shanew.net
Therefore this is not a syllogism | www.ischool.utexas.edu/~shanew