Mail & Activities sync with non gmail or outlook

Is there a way to sync my email exchange to Emails & Activities without having it go through gmail or outlook? I currently have a non supported email exchange I am currently using.

I am also looking for any solution. This is rather easy to implement in monday.com but somehow it is not there yet. There is only Gmail or Outlook. So customers who don’t use one of two mentioned above are excluded from Monday.com family…