We have implemented server-side Spam filters for our clients using the Plusmail web control system. The anti-spam filters use several spamming blacklists for spam detection. We have chosen the organizations below as they have the most reliable and current lists available.
- http://www.spews.org/
- http://www.monkeys.com/anti-spam/filtering/proxies.html
- http://spamcop.net/bl.shtml
- http://ordb.org
If a website owner feels they are wrongfully listed on a Spam blacklist, they should refer to one of the websites listed above to see why they were blocked and how they can be removed.
If you wish to disable the server-side spam filters for either your whole domain or just for certain email addresses, login to your Web Control Panel, and then click on "Spam Filter."