Hello again al.. I need to setup exchange 2003 to send and receive from a exchange 5.5 in another domain . my company have 5 domains , one uses a excahnge 2003 and all the others use 5.5 , this is all internal , I will not use this exchange 2003 to send and receive e-mail to the internet , it only from one domain to another , can someone tell's-me what i need to setup to get-it working ? Thaks again... -- Best Regards Jethro Morais