Hello all. I have a security group called IT with email it@xxxxxxxxxxxxxx And I have 3 users at this group: a@xxxxxxxxxxxxx, b@xxxxxxxxxxxxx and c@xxxxxxxxxxxxxx When the user "A" is logged at his workstation, and hi needs sent a mail for abc@xxxxxxx and this email needs leave exchange 2000 displaying it@xxxxxxxxxxxxx and not a@xxxxxxxxxxxxxx Using Outlook 2003, I click in view, and show from field. At from field, I type IT, and automatic it's show IT, and when a sent a mail, I receive a message from administrator saying I cannot have permissions to sent this mail. How I can set the permissions to just 2 users A and B send a mail using the name IT Security Group? Thanks!!! Rafael Rodrigues.