For you ownCloud fellows, you should already heard of founding engineering crews from ownCloud left the company and created a brand new company called Nextcloud. Theoretically, Nextcloud and ownCloud should share the same or similar codes in the server backend.
Out of curiosity, I want to check if EVO Collaborator for Outlook is compatible with Nextcloud. I applied for a trial account on Nextcloud (https://demo.nextcloud.com/). The server path is https://nextcloud_server/<username>/remote.php/, which is what you would enter hostname space if you were to have an account from a Nextcloud service provider.
However, if you run your own Nextcloud server, the server URL is the same as ownCloud: https://<nextcloud_server>/remote.php/.
Therefore, we can still use EVO Collaborator for Outlook to synchronize Nextcloud’s contact, calendar and task with Outlook.