Wednesday, December 13, 2006, 2:39:41 PM, Steve wrote: > I wonder whether a set of I-Mail rules that blocked all of the > small island states with TLD's as well as Russia and Korea and > anything else you wanted to include might not be effective. Assuming > you host more than one domain, the rule base could be copied in by > domain and modified if necessary for a domain that wanted to be able > to receive the material. You could even take it to the user level if > necessary. I've been playing with a few tests and have found it > quite effective against new spam versions that the rule base has not > yet encountered. It isn't at all effective against e-mail coming from > an IP in Russia that masquerades with some other HELO or TLD but I'm > surprised by how much of it is easily detected on that basis. > > It's also possible to block it out with huge IP blocks of course, > as you can map them, but that is done for the I-Mail system as a whole > so not easily implemented or tailored at the domain level.
There are DNSBL lists out there that allow you to block out specific countries by IP address - no muss, no fuss, nothing to maintain. This assumes your MTA supports DNSBL blocking of course. :-) -- Joey Lindstrom ############################################################# This message is sent to you because you are subscribed to the mailing list <[email protected]>. To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]> Send administrative queries to <[EMAIL PROTECTED]>
