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Automated Bayesian Spam/Ham Training with Rspamd

March 11th, 2020 by Philip Iezzi 7 min read

At Onlime GmbH we have migrated the mail infrastructure in Dec 2019 from good old Spamassassin to Rspamd which greatly improved spam filtering. Rspamd offers a nice way of Bayesian learning in Rspamd statistical module. You can feed emails through rspamc learn_spam or rspamc learn_ham for manual spam/ham training to improve Bayes hit rate.

In the past, we have only internally used Bayesian training. Wouldn't it be nice to let all customers help us improve the Bayes filter / hit rate? Without even asking them to do so?