Can I prevent Clients from Sending Spam in Plesk or Ensim?

I am trying to decide between Ensim or Plesk. My reason for limiting my choices is that my clients tend to be newbies.

Having said the above, I do not want spam getting mailed from my server. With or without add-on software-scripts is it possible using Ensim or Plesk to:

1. Limit the amount of email users can send hourly? VERY IMPORTANT ... as I do not want to get banned by spam cops, get my server unplugged etc etc.

Optional but desirable:
2. Limit the amount of email sent TO the server by a given IP address.
3. Tarpit IPs that send email to nonexistent users to guess user names.

Thanks in advance

 

 

 

 

Top