Forum Moderators: phranque
The newsgroup is populated by e-mail, server and website admins from all over the World and they can give you lots of pointers on protecting your hosting service from being abused by UCE/SPAMers.
They can also give you pointers on how to keep an eye on those you host. ;)
:(
The Advanced Group Search [groups.google.com] may be of some help too.
:)
In light of ( http://www.informationweek.com/story/showArticle.jhtml?articleID=17300016 ) this article in InformationWeek, I'd say the deck is stacked against you from the beginning.
"A recent test by InformationWeek columnist Fred Langa shows that up to 40% of valid E-mails never reach the recipient. Here's what it all means to you."
Seven pages worth of reading there.
As a reseller, do you think it is ethical to deny all your clients' email services (which I assume they pay for as part of their total package,) based on the fact that there may be a bad apple (spammer) or two in the lot?
(It occurs to me now, that perhaps you don't offer any email services with your hosting packages...)
Couldn't this policy be (ridiculously) extended to websites? Since a single client could put up, say, a hate site, no clients are allowed to put up a website...
Have you spoken with your host about this? Perhaps they could close port 25, denying your clients the ability to send mail (through your server,) yet they could still receive mail.
While I'm certainly not familiar with all reseller solutions, I imagine all decent packages will allow you to monitor the bandwidth usage of your clients. Hopefully, which ever one you use, will also break it down by protocol. Then you could monitor SMTP usage...
If ethics don't bother you, as the reseller you do have the ability to rifle through your clients' hosting space, including all their mail, without their knowledge (and with no way for them to know.) Not something I recommend or condone, but...