Calendars published in MailServer can be shared with other users who can subscribe them for their Apple iCal or view them in WebMail.
To share an iCal calendar, follow these instructions:
Log in the WebMail interface.
Create a special calendar folder (e.g. Shared_Calendar). Creating of new folders in WebMail is addressed in chapter 1.10.5 Shared and public folders.
Share the folder with corresponding users.
Publish an Apple iCal calendar to the folder just created. The URL for publishing will be as follows:
http://expertspace.net/ical/Shared_Calendar
Warning: It is always necessary to share the entire folder in which the iCal calendar is published. If only the calendar itself is published, the sharing will be removed upon next update (publishing of a new version). This is caused by the fact that iCal calendars are recorded on the servers in the way that the original version of the calendar is removed first (including possible sharing) and then a new version is saved to the server.