rabin...@sasktel.net writes: > I would still be interested in seeing and documentation on a known > good list configuration to ensure
That doesn't exist. Spam fighters generally believe their users would rather lose mail than receive spam, and act aggressively on that belief. Some sites have worse problems, like leaking over 100 million user address books, and they act even more aggressively. Also, in general it's not the list configuration that triggers spam filters. It's general site reputation and message content. I don't know why your webmail likes Wrapped messages so much. What you can do to protect your site's reputation: 1. Check that your IP address is not in any DNS block lists. If it is, sometimes you can request a new allocation. 2. Spam filter mail incoming to Mailman aggressively. 3. If you have human mail users on the host, or lots of services running, you might want to filter on outgoing mail as well. 4. Use DKIM (and optionally SPF) to authenticate your outgoing messages. 5. (Optionally) participate in DMARC (not terribly useful for a Mailman site usually). 6. Use the ARC protocol to placate some sites (ARC usage is not universal yet, and AFAIK there are as yet no best practices for when to trust ARC-based claims of verified authentication). ARC, like most of these protocols, is best implemented in the MTA. However, Mailman 3 does have an option to implement ARC in Mailman. (This will probably not ever be backported to Mailman 2; for Mailman 2 ARC can only be implemented by your MTA.) I'm not sure what to say about content. My own site has obnoxiously high rates for both false positives and false negatives, and I have not been able to detect a pattern for these errors. :-( Steve ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org