Its good to see that an ever increasing number of e-mail admins are understanding that reverse DNS lookups are bad. There are much much better and more reliable ways to blocking spam without blocking legitimate senders. Tom www.isaserver.org/shinder Tom and Deb Shinder's Configuring ISA Server 2004 http://tinyurl.com/3xqb7 MVP -- ISA Firewalls -----Original Message----- From: Shawn Moua [mailto:smoua@xxxxxxxxxxxxxxx] Sent: Friday, November 12, 2004 6:08 PM To: [ExchangeList] Subject: [exchangelist] RE: Reverse DNS http://www.MSExchange.org/ Darran, This will help block spam but will also block legitimate emails as well. I would advise you to not use it because of this very reason. There are a lot of businesses out there that don't have reverse dns entries (or setup correctly anyways)...Try looking into good third-party email filtering software. Shawn M. > -----Original Message----- > From: Darren Haun [mailto:dhaun@xxxxxxxxxxxxx] > Sent: Thursday, November 11, 2004 7:15 AM > To: [ExchangeList] > Subject: [exchangelist] Reverse DNS > > http://www.MSExchange.org/ > > How do you set up Reverse DNS on your Exchange Server to reject messages > that don't correspond to the IP address/Reverse DNS entry. This tactic is > usually used to block spam. > ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: tshinder@xxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx
