is there any way of capturing all bandwdith usage ( e-mail, sever, redirects ... )

I think I got a problem somewhere, and I've confirmed that it is on my end.

It's bandwidth leakage. there is a 1% to 3% difference from my numbers than the numbers of the datacenter. I've confirmed it that it's my machines.

I got hosting controler win2k and Plesk on the Unix. I just can't seem to find how to solve it.

mike

Possibly isolating each IP and monitoring it seperately. Narrow it to a machine, then to a block then to an ip.