Setting up email integration in Navision

Could someone please tell me where to start looking to find information on setting up Navision to send email? I haven’t got any specific applications yet, but I know the question will come at some time and it would be nice to be ahead of the game.

After 4-5 hours delving around, I came across the SMTP OCX by Stephan Stapel on the MIBUSO site. Got it working first time after the example on his website.