To help protect your account, Google will soon block apps that don’t comply with Google’s security policies. You can let the app developer ( know that this app should stop using unsupported OAuth flows


I cant read or use any gmail or gsuite account anymore.


Upvote this post here:

@superdejooo - This appears to be resolved in Mailspring 1.10.8-8ea2a61f. I have a regular Gmail and an 0365 Organization Account connected to my Mailspring instance.