Improve email UX with slow or flaky Internet connection
On #17276 (comment 154074), we noted that there are UX problems for email in Tails with slow or flaky Internet connections.
We did some informed guesswork about possible problems (for example, the fact we default to IMAP, without enabling "download messages for offline use" at all — even for the most recent X days), and had a few ideas to solve that.
But we don't really know if the problems we had in mind are the worst part of the email UX in Tails in such situations. Furthermore, we also don't know how email UX problems rank among the UX problems of Tails in these situations.