I typically compose all messages in Markdown and then convert that into rendered HTML. So if you believe in the expressiveness of Markdown (which I hope you do), then HTML rendering is absolutely necessary.
Unfortunately, desktop Outlook is miserable with HTML support [1]. In particular, code blocks and quotes become an unreadable mess. The only way that I've found to include readable code blocks is to copy from VS Code, which somehow has the magic HTML combination that Outlook understands.
Unfortunately, desktop Outlook is miserable with HTML support [1]. In particular, code blocks and quotes become an unreadable mess. The only way that I've found to include readable code blocks is to copy from VS Code, which somehow has the magic HTML combination that Outlook understands.
[1] https://www.caniemail.com/clients/outlook/#windows