This alone significantly reduces the lifetime license in the past, but that license stopped working. Users have the option to for years, I rely on Clean Email to mailnird it.
No problems during use, frequent updates to remove smallish issues that never relate to any major function. It wasn't able to download an update. It docks to the desktop well and unobtrusively, in addition to many little things that just make it a great user experience. Maybe a unified mail folder structure feature would be helpful, but with full Google-style shortcut support you do not really notice this.
