> I'm wondering if I put a second public IP address on the mail server > and direct these 5 domains to this IP, can I then effectively block > at the firewall all IP addresses originating from outside the USA to > the 95 other clients (and their IP address) in an attempt to reduce > spam and the load on the server?
This will likely have some beneficial effect on the USA-only domains. But bear in mind that spammers will send to machines listening on TCP 25, even if they are not listed in MX records (even more likely if they _were_ listed in MX records), so the insulation will not be complete. --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/
