Hi Support, Currently we are running a Small Business Server which is running Exchange Server 2003. I need to find out whether we are able to customise the existing NDR message to the sender or remove the section below which refers to the domain name i.e. "<addcom.com #5.1.1>" We would like to remove the reference to the domain name to protect the mutliple business divisions in our company who use a different email domain. Existing NDR message to the sender: The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the correct address. <addcom.com #5.1.1> Kind Regards, Richard Baird Technical SupportAddcom Pty LtdGround Floor Unit 4, 5 Talavera Road North Ryde Tel: +61 2 8877 5612Fax +61 2 8877 5699 Mob +61 2 409 033 684Mail: richard.baird@addcom.com Web: www.addcom.com

Unfortunately you cannot do this in 2003... as far as I know but 2007 has the capability using transport rules. 2007 How tos: http://www.msexchange.me.uk/customndrmessages.htm http://technet.microsoft.com/en-us/library/bb123506.aspx