POPFile grew from POP only to lots of other protocols and many, many people still use it.
I would have happily come to Japan and spoken, I've been there before and always loved the place.
I love this feature.
It is also possible to use POPFile with any client and IMAP server.
Most of our Organizer logic starts with heuristic matches on the From address and other headers in the message, but we're also testing out Bayesian filtering on the message bodies to identify other traits and train the system.
Joshua Baer | @joshuabaer
Gmail has good filters, but it does not have bayesian learning (appart from the spam filtering).
That's weird, they use the exact same tech for the spam, why not apply it to the 'good' mail as well?
At that time POPFile+IMAP was not very stable and POPFile would crash often. And also, it was a pain to have a computer running all the time at home only for this.
Then, there was another problem. POPFile would run every two or five minutes, so when I opened Gmail I used to find not yet filtered mails in the inbox.
If you make a webservice that does this right, I will consider using it. Now I'm using Opera Mail, which is very nice, but the training is local and, therefore, I don't have the same filters and training at home and at the office, which is rather painful, sometimes.
I'm sure there is a succesfull business behind this.
Clearly, the not yet filtered bit is a nuisance, that's why you really want it to be built into your mail client.
Yes, the nuisance is there, but I'm sure there is a way to solve it. The good part is that it does not make the service unusable, so, people can start using the service even though with this nuisance.
Release early and then iterate. ;-)