Outlook and Exchange aren't going to be killed off like that. Too many corporate customers and governments use it, email holds up in court these days as offici

Outlook and Exchange aren't going to be killed off like that. Too many corporate customers and governments use it, email holds up in court these days as official communications. Larger users of that have it on-prem. Think if you run IT for a large (>5000 people) company, what benefit would there be for a project to change your entire email stack? A new provider would have to check off all those compliance, governance, security, etc. check-boxes and then some. That is what Slack would be up against to get into that market. In a way, they are killing email. A lot of communication across 3 or more people used to only be via email. Now it happens in Slack (or MS Teams I suppose)