I did some debugging and it seems that we are affected by this Electron bug: [Bug]: Renderer spellcheck API does not work on Windows · Issue #28684 · electron/electron · GitHub
As a workaround, you may try to set the spellcheck to a different flavour than your system language. E.g. when your system is configured to use “en-US” as a language and provides its dictionary, then “en-GB” might work.
I will monitor the issue and hope that a solution is possible in the future. For now, there is not much that we can do on the side of Mailspring.
Thanks for this reply. It doesn’t solve the problem, but it gives hope that you will eventually fix it. This is the main blocker against the decision to go for the paid version (although the price is also a bit too high, $5 would be a reasonable barrier - for example, the whole Google Workspace costs $6/month) . Maybe some kind of -50% promo on BFCM? I would jump into the annual package hoping that you will soon fix the bug with the lack of language correction.
Let’s hope so. Unfortunately the bug on the electron side is 3 years old, so I would not expect a solution to appear very quickly.
I will monitor it and keep you updated if there is any progress.
Also, this is only a Windows issue, so if you want to try Linux as an OS, you would get rid of the bug.
Thanks for the quick answer
I know Linux is a good system, but it is not possible and is not the solution in my case.
I read the link you posted in the previous message: [Bug]: Renderer spellcheck API does not work on Windows · Issue #28684 · electron/electron · GitHub
Thanks for that. Too bad they didn’t fix it