Comment on Postbox

Postbox is nice, and I did use it for quite a while. However, it's essentially just a handful of features bolted on to Thunderbird.

While free, that was fine, but I was very surprised when I received an email about pricing, as it now seems like they are trying to profit from Mozilla's work with as little coding as possible. This is why the LGPL/MPL for programs is often unwise.