[wanderr]

This looks nice, Thunderbird was certainly looking incredibly dated last time I used it, but the reason I ultimately gave up on it was performance. Once you have a massive amount of email it can be unpredictable and sluggish.

[shirro]

I find Thunderbird unusable unless I turn off indexing. Once I do that I find it compares well to alternatives.

I have standardised on a 13" screen and I remove as much of the Thunderbird interface as I can. I can conceive of a UX redesign making it more useful but it wouldn't look like anything in this article. I don't care how pretty it looks. It is a list of folders, emails and messages not a painting.