This reminds me a lot of the server-side procmail [0] and Sieve filters [1]. Perhaps this was even the inspiration for such a project, who knows?
But tray.io looks like it can handle far more advanced rules (or at least those somewhat comparable to procmail, and without having to do a bunch of manual scripting!), but in a more user-friendly, graphical way. And if it can automatically generate machine-learned rule suggestions based on user behavior, that would be even more fantastic.
The only major downside is that you have to be willing to let a third-party have access to your e-mail (and I know that when I've written server-side procmail scripts that have misbehaved, I've managed to unintentionally lose e-mail at least once or twice in my lifetime; of course, I didn't know that I had even lost the mail, since the server silently discarded it due to my malformed rules).
But tray.io looks like it can handle far more advanced rules (or at least those somewhat comparable to procmail, and without having to do a bunch of manual scripting!), but in a more user-friendly, graphical way. And if it can automatically generate machine-learned rule suggestions based on user behavior, that would be even more fantastic.
The only major downside is that you have to be willing to let a third-party have access to your e-mail (and I know that when I've written server-side procmail scripts that have misbehaved, I've managed to unintentionally lose e-mail at least once or twice in my lifetime; of course, I didn't know that I had even lost the mail, since the server silently discarded it due to my malformed rules).
[0] http://www.procmail.org/ [1] http://wiki.dovecot.org/LDA/Sieve