Does SpamBayes work with Outlook Express?
Outlook Express isn’t a version of Outlook, it’s a completely separate program (from the same company). Because they give it away for free, Outlook Express is a really stripped down program, and it’s extremely difficult to create a plugin for it. You can use sb_server and/or sb_imapfilter with Outlook Express. Because Outlook Express does not let you filter on arbitrary headers (like X-Spambayes-Classification), sb_server must add the classification to the “To:” line, or the “Subject” line. The configuration page has options that let you do this. You can find detailed instructions about how to do this, step by step in this FAQ question. Once you’ve set up sb_server, you also need to create rules (like any other rules) in Outlook Express, to take the appropriate action on mail based on its classification (move spam to a spam folder, for example). You do this by searching the “To:” or “Subject:” line for the classification – since you can’t set the rule to look only at the start of the l