You're forgetting the part where Microsoft owns the integration, so your options as a new business are "pay Microsoft to decode the emails people are paying Mic

You're forgetting the part where Microsoft owns the integration, so your options as a new business are "pay Microsoft to decode the emails people are paying Microsoft to encode" or "spend man hours going through those emails without decoding them". It's starting to make sense to me why this is a billion dollar industry like Google was. Not because of its proposed usefulness but it's ability to create a monopoly where the options are to sign an contract you don't get to negotiate, or be "outcompeted". It feels like a mirror of Google's relationship with content creation sites. They created and continue to benefit from a reality where the options are "give Google your content for free to index and use as it likes" or "your content isn't discoverable by people".