[support] email archives as drupal nodes

Hi All, New to drupal. I'm using 6.x and I would like to be able to add email archives into my drupal site and have them accessible for viewing/searching according to rules set by content_access. The email archives will need to have new emails added to them as well as a large backlog to be imported. What is the easiest way to achieve this ?? I've done quite a lot of googling on the subject but I can't find the right sequence of keywords to give me a decent hit :-) Any help appreciated Cheers Geoff