I think this is the 3rd time I've heard Thunderbird is/is going to be unmaintained and that I should avoid it, but I'm yet to see a good alternative. Claws was crashy and didn't DPI scale properly on Windows, OS X Mail had strange behavior with my IMAP server and I just wanted a consistent UI with my Windows and Linux system. My next option is webmail but there's no good IMAP webmail client that seems to be able to handle 8 accounts at once with thousands of messages in each. The best alternative I've seen is probably Alpine, a CLI based client, but that was difficult to use and seemed to randomly send deleted characters from emails to clients, which was almost a major issue on one occasion.
I'm just going to keep running Thunderbird until there are gaping security holes, people say Thunderbird is bad but everything else is worse.
I'm just going to keep running Thunderbird until there are gaping security holes, people say Thunderbird is bad but everything else is worse.