Enabling email access under intermittent connectivity

In this paper, we propose a PEP based Mail Proxy to enable mobile users to access email services over disruptive links. The proposed scheme offers a disruption tolerant proxy service for email client to communicate over intermittently connected links. The proposed scheme is transparent to the email client and requires no modification or configuration on the client. In addition, it enables the support for a large group of people without requiring individual configuration on each user device. The proposed protocol is implemented with SMTP support and a test bed is built. The performance result shows that it can deliver messages over disruptive links whereas direct IP connections fails.