First off, I’ll be a bit of an ass. You seem to be looking for a free option that meets your criteria. You’re on HN, you know that isn’t going to happen. Secon

First off, I’ll be a bit of an ass. You seem to be looking for a free option that meets your criteria. You’re on HN, you know that isn’t going to happen. Second, split desktop and server. You can use Outlook or Thunderbird or pine from the CLI, depending upon what you care about. Third, let’s face the server problem. There are plenty of options for self hosting all of these [1]. The trade off is that you’re going to spend WAY more time and money in maintaining it. 1: https://github.com/awesome-selfhosted/awesome-selfhosted https://github.com/awesome-selfhosted/awesome-selfhosted