Dear All, I have here one situation need your opinion for that, please give me your reply. I have here 25 users are have domain account & Exchange mailbox account on the exchaneg server 2003 3nterprise edition . 5 users only we do not need them to access my network and they are in another subnet completely. we have this domain name EGYPT-INNOVATIONS.COM , And all the users have there e-mails like taht . now, all the users are able completely to send to out side & receive from outside. but the total 5 users which they are here, they cant receive any e-mails from any user located on the exchange box , because the e-mails which we sent them, its stored on there mailbox. the only solution for that , i have to let them to enter the network and to be able to connect and receive e-mails. but we do not want to do that at all. what i did ? 1- i make only one E-mail account but using the POP3 & i put the IP-address of exchange server , and in the SMTP server i put the IP-address of the exchange server . Now, they arre able to communicate and receive e-mails from internal & external. but my question is , is there anyway , to put for example a POP3 server between them and the exchange server , so they will be able to communicate directly with the POP3 Server and the POP3 server will take all the E-mails from the exchange server and give it to them ? in case of any thing happen to the POP 3 server which i create , it will be very easy for me to work and install it agian .