We use MS Exchange on Small Business Server 2003.
Currently we get all our email through with POP3 connectors from our ISP mail accounts
We want to have the ability to allow remote email clients (Cell Phones actually) to collect mail from the exchange server by POP3 and send mail using the exchange server as SMTP.
Can anyone offer a step-by-step guide?
Please include details of relevant ports that need to be open on the firewall :)