Blog  〉The funny rules of SpamAssassin in 2023 (deep dive) This investigation was surprising to me so I thought it would be interesting to share my findings and I hope you'll like it. Some of my clients occasionally reported that the updown confirmation email (used to confirm a new email address, provided by Devise) had been classified as spam, we're talking about this one: Doesn't look too spammy so far but sometimes mails servers running SpamAssassin were indeed reporting a rating above 5 on i...