> "...hopefully in a way that makes it clear that they are mutable, and maybe even informs users if they've changed since last view." That would be amazing, an

> "...hopefully in a way that makes it clear that they are mutable, and maybe even informs users if they've changed since last view." That would be amazing, and as a happy Fastmail customer I'd love to see it implemented. I am in full agreement with your blog post, and Google's AMP-email plan only further cements my position to excise Google from my life as much as possible. As much as I love seeing new and emerging technologies, there are times when one must say "that's too far".