Hi Ashraf In the properties for the Internet Mail Service you will find the ability to restrict who can send mail through it, the best way is t create a DL that contains the users who you don't want to have the ability to send and then use the DL on the IMS. Here is a link that should help you out: http://support.microsoft.com/default.aspx?scid=kb;en-us;244008 Mark Fugatt MCT, MCSE, Microsoft Exchange MVP Pentech Office Solutions Inc Tel: 585 586 3890 Cell: 585 576 4750 Fax: 585 249 0316 www.4mcts.com www.exchangetrainer.com -----Original Message----- From: Jawad, Ashraf [mailto:JawadAI@xxxxxxxxxxx] Sent: Saturday, July 12, 2003 2:34 AM To: [ExchangeList] http://www.MSExchange.org/ Hi All, I'm facing big problem to prevent some employees in my company from sending messages outside through IMS. The manager wants them to send locally only. We have NT 4.0 with SP6a and Exchange 5.5 SP4.0. Ashraf ------------------------------------------------------ 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 ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: mark@xxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')