> But isn't it a _good_ practice to make an attempt (everything these > days seems 80-20 rule) to block dynamic Ips from sending > direct-to-mx? It seems that this is such a common problem, not only > with spam, but viruses, that to force a dynamic user to auth to > something, or send through a specific relay server (that can filter) > is 110% legit.
Try whatever you want! Hit the zombies as effectively as you can! If you have a rule that works for an installation with acceptable FPs, use it in that installation. Just don't pretend, as Len is, that ASTA has recommended selective-blocking attempts at all, let alone portrayed them as having no substantive FP burden. ASTA has not. Reading their position paper makes that clear (reading media coverage/mangling of the paper isn't enough). --Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] SpamAssassin plugs into Declude! http://www.mailmage.com/products/software/freeutils/SPAMC32/download/release/ Defuse Dictionary Attacks: Turn Exchange Addresses into IMail Aliases! http://www.mailmage.com/products/software/freeutils/exchange2aliases/download/release/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
