It claims to be modern, yet the landing page looks outdated.
The current way of thinking is "It looks outdated", then the page is updated to look "modern" and that normally entails removing all relevant bits of information. I was going to attempt to find the Microsoft Exchange landing page, to show you what a modern landing page for a mail server looks like, and how utterly useless that is. Sadly the modernity has hit Microsoft hard and you can now only find the page for hosted Exchange/Microsoft 365 (https://www.microsoft.com/en-us/microsoft-365/exchange/email). Granted the page looks more inline with modern webdesign and it fucking pointless, there's not one bit of useful information.