You can disable the protocol on a per user basis. Relatively easy to do manually, but a PITA to script (while it's easy to figure out the particular A/D attribute to modify, it's not supported to modify that attribute). -----Original Message----- From: Jared Johnson [mailto:jaredsjazz@xxxxxxxxx] Sent: Friday, March 26, 2004 6:59 AM To: [ExchangeList] Subject: [exchangelist] RE: stopping users within the domain from using external POP3 http://www.MSExchange.org/ Unfortunately, I can't do that. It would prevent legitimate users from using our own POP3 email. I was hoping there would be another option... Thanks -----Original Message----- From: Michael B. Smith [mailto:michael@xxxxxxxxxx] Sent: Friday, March 26, 2004 5:12 AM To: [ExchangeList] Subject: [exchangelist] RE: stopping users within the domain from using external POP3 http://www.MSExchange.org/ Disable the POP3 service. Block the port on your firewall. -----Original Message----- From: Jared Johnson [mailto:jaredsjazz@xxxxxxxxx] Sent: Thursday, March 25, 2004 4:39 PM To: [ExchangeList] Subject: [exchangelist] stopping users within the domain from using external POP3 http://www.MSExchange.org/ Hi All I'm on Exchange 2000. Does anyoen know how to stop users in my domain from using external POP3 (Outlook Express, etc.) Thanks, Jared __________________________________ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html ------------------------------------------------------ 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: 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 ------------------------------------------------------ ------------------------------------------------------ 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: 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 ------------------------------------------------------ ------------------------------------------------------ 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: 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 ------------------------------------------------------