Oh never mind, I see where you are coming from. SMTP delivery vs. Telnet 25 - there's no difference so if you allow SMTP delivery via the server, you can't prevent telnet 25 delivery. _____ From: Carl Houseman [mailto:c.houseman@xxxxxxxxx] Sent: Thursday, July 14, 2005 12:26 PM To: '[ExchangeList]' Subject: RE: [exchangelist] RE: SMTP quires 1. You can't Can't this be accomplished by denying access to the virtual server through connection control? Carl _____ From: Mark Fugatt [mailto:markfu@xxxxxxxxxxxxx] Sent: Thursday, July 14, 2005 5:46 AM To: [ExchangeList] Subject: [exchangelist] RE: SMTP quires http://www.MSExchange.org/ 1. You can't 2. Make sure they have the have configured Outlook Express to authenticate with the outgoing server, you can do this by going to the Servers tab in the Outlook Express account properties and checking the box. Mark Fugatt Dedicated Supportability Engineer (Exchange) Microsoft Services Organisation Desk: +44 (0)118 909 5630 Mobile: +44 (0)7966 858108 MSN IM: markfu@xxxxxxxxxxxxxxxxx Blog: http://www.msmvps.com/exchange <http://www.microsoft.com/support> http://www.microsoft.com/support Dedicated to proactively supporting Microsoft's enterprise Customers This email may contain confidential information. If you are not named on the addressee list, please take no action in relation to this email, do not open any attachment, and please contact the sender (details above) immediately. Information in this email is provided in good faith. If you are a customer of Microsoft, please refer to the terms and conditions which cover the provision of support and consulting services to you/your organization. If you are not corresponding in the course of, or in connection with a Microsoft contract or program with its own terms and conditions, please note that no liability is accepted by Microsoft for the contents of this mail. _____ From: Praveen Ramaswamy [mailto:ramaswamy_praveen@xxxxxxxxx] Sent: 14 July 2005 10:36 To: [ExchangeList] Subject: [exchangelist] SMTP quires http://www.MSExchange.org/ Hi , I have two quires: 1. How do I restrict users from teleneting to port 25 on my Exchange 2003 server for sending out mails? 2. What should be done on the Exchange 2003 server to allow authorized uses to send out mails to outside world by using a POP3 client (e.g Outlook Express). Currently people can telnet to my exchange server and mail to other users in the exchange organization by giving any FROM address. Also by using Outlook express people are not able to relay mails to outside world. I want only authenticated users to relay mails. Regards Praveen R _____ Start your <http://us.rd.yahoo.com/evt=34442/*http://www.yahoo.com/r/hs> day with Yahoo! - make it your home page ------------------------------------------------------ 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 ------------------------------------------------------ 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: webelists-exchangelist@xxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx