SmarterMail 14 does allow having multiple calendars but I can still only share  My Calendar in Webmail to another user. In Outlook or phone I can see all multiple calendars - sync with active Sync. In Webmail the other user can only see te default calendar. When will Smartermail sync all multiple calendars to a other user?

Mark, adding the ability for users to share their secondary calendars is on the list of features to include.  Unfortunately, I cannot provide a specific release version in which it will be included.  But it is coming.  The facilitate development tracking of topic, I am changing this from a Question to an Idea.

With Smartermail 15 Beta it dont work. Is there a release date when it works?

Is there a release date when it works?