Until recently, only individuals, companies, or internet service providers who ran their own mailservers were able to use the methods documented below to filter with APEWS. Email users who did not have this capability, but had access to a "shell" account, could use SpamBouncer
for an alternative method of filtering using DNS lookups and APEWS.
We also recommend that all people bothered by spam contact their internet service providers and request they add some sort of filtering or spam-tagging to their incoming email systems. Several spam filtering choices are listed and discussed on the APEWS FAQ page.