Web Based e-mail servers

I am running SuSe 7.0, and I have a couple of questions... 1.) I have been asked by one of my customers to setup a logging function to log all inbound and outbound e-mails that are being sent through their server. What program would be good for this? 2.) I would like to setup a web based e-mail server for my customers so they can get their mail off the web. What is a good program to use and how secure is this? --Brian --Chosen1 Network Operations Administrator (COO) Postmaster and Routing lead Admin of beer.wa.us.ircsol.net /server beer.ircsol.net and Admin of unix.az.us.ircsol.net /server unix.ircsol.net http://www.ircsol.net