Hi, I see SpamBayes is distributed for free, did you think of collecting donations for its usage, especially in bitcoins? I'm now helping companies to get a free button <https://cex.io/donations>, that is easy to embed to collect bitcoins from their users. According to our statistics, people spend bitcoins easier comparing to real dollars. Also, we are eager to make first small bitcoin donation for a good start. Would you be interested in such a button? Best, Mary ᐧ ᐧ