I feel like the goal of this transaction was to allow Postbox users a path forward in the future with eM Client, rather then an abrupt end into the abyss. This in itself is a good thing for Postbox users. As announced, Postbox will continue to be supported until December 22nd, 2024, and a discounted option was provided for Postbox users to migrate to eM Client if it fulfills their needs. For users whom needs are not met, they are trying to eventually win them over by listening and trying to implement the most important and requested Postbox features.
I don’t understand all the negativity based on this situation. Nothing is stopping someone from continuing to use Postbox until eM Client meets their needs, or they find an alternative email client that does. I know many users probably hoped Postbox development would continue, but eM Client has decided it is better they implement the important Postbox features directly into eM Client, rather then maintaining a completely different codebase they are unfamiliar with which I am sure would be very expensive and difficult.
So I am happy to see at least eM Client stepped in and gave some future path to Postbox users, rather then it fading away slowly like it has, and then a sudden death to nowhere. So keeping things to constructive feedback and using the Sleedplan page (Help bring the best of Postbox to eM Client) is the best path forward towards an eM Client that eventually wins over most Postbox users. Of course there is always the expectation that it is impossible to make everyone 100% satisfied, but they at least are making a coordinated effort to do so, so better not to degrade or belittle the effort as it is.