Sounds like both virtual servers are using the same port number, the rules are simple, you cannot have two virtual servers using the same IP/Port combination, here is a doc that explains how to configure secure POP3. http://support.microsoft.com/default.aspx?scid=kb;en-us;319273&sd=tech Mark Fugatt Dedicated Supportability Engineer (Exchange) Microsoft Services Organisation Mobile: +44 (0)7966 858108 http://www.microsoft.com/support -----Original Message----- From: Mustafa Cicek [mailto:mbcicek@xxxxxxxxx] Sent: 25 October 2004 14:37 To: [ExchangeList] Subject: [exchangelist] RE: Secure and Non-Secure POP3/IMAP4 http://www.MSExchange.org/ Hi! I tried to use the same IP address for both connections. But I cannot start secure POP3 virtual server, if I use the same IP like non-secure. I I used different IP for secure and non-secure POP3 connections I can start POP3 virtual server without any problem. Any idea? Best Regards Mustafa ------------------------------------------------------ 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: markfu@xxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx