On Mon, Aug 8, 2011 at 3:48 PM, Stephen Atkins <satk...@skircr.com> wrote: > My main goal is to figure out what I should have in each section of > main.cf (smptd/client restrictions to help stop spam and not to be a open > relay or back scatter host.
You won't be successful in stopping spam with any kind of "set it and forget it" configuration. But, if you want to test for open-relay-ness: http://www.abuse.net/relay.html Is a nice tool to test your server for different address conventions in an attempt to relay mail out via your server.
