Ok .Suggest to then try https:// in front of url address for Caldav & Carddav - https://dav.webmail.bell.netand same port 443 & SSL encryption as per your host site.
Ok .Suggest to then try https:// in front of url address for Caldav & Carddav - https://dav.webmail.bell.netand same port 443 & SSL encryption as per your host site.