Yep, first item in this newsletter. http://www.slipstick.com/emo/2005/up050331.htm Hope this helps; James From: rusty27@xxxxxxxxx [mailto:msexchange@xxxxxxxxxxxxx] Sent: Tuesday, December 20, 2005 4:29 PM To: MSExchange List <msexchange@xxxxxxxxxxxxx> Subject: [msexchange] Limit users to internal email use on Exchange 2003 Is there a way to limit a users mailbox to be for internal email use only? Limiting the ability to only send email to internal email accounts?