There's a small problem which i can't get around with it. Hope someone can help me.<BR><BR>I'm developing a web based application that can be accessed inside my network and outside my network. At some part of the application, it will send out emails that contain some images. So while in network, the image source should be internal IP and while outside network, the image source should be external IP. BTW, we can't access our webserver with external IP while in our network. Therefore how can I ensure that the image link is not broken be it the email is sent to staff in the network or customer outside the network?