Okay -- my last question go nothing, maybe someone would bite on a more technical question. Instead of having one machines emit via tunnels that connect to a cluster of machines each with their own static IP, why not simply rotate static IP's on the main machine? You could just create a script in your favorite programming language that runs a set of commands to produce the IP hop. I found a few ways to do this on the net, they all look doable. But I cannot be sure because I am not familiar with unix environments. Maybe I am missing something, is it technically feasible? Would your ISP notice? Is there something I have no considered? Edit: Maybe because you want to keep your main STMP server from being identified as a source and thus banned/removed? There are headaches with having to set up the STMP server each time?
You could tunnel the sending ips to your smtp server. There really is no benefit in configuring the sending software on the remote IP machines. I don't understand why you would need a script to 'rotate' the IPs.. Unless you're using some hacked up postfix/qmail setup to get your mail out..
Well -- the reason would just be financial, would it not help reduce the cost of the servers to have one machine able to hop IP's, thus not needed the remote guys?
This makes no sense. If you have IPs attached to your sending machines you can use them to send mail. If you get them from remote networks you can set up a tunnel to use them. What is not clear here?
