Via OWA Website,
select the calendar you want to share, then choose “Share”, and the option is listed as “Publish This Calendar…”
Via Outlook 2010, right click the calendar they want to share, chooses “Share” and again, it’s listed as “Publish This Calendar…”
After clicking “Publish This Calendar…” via OWA or Outlook, the options can be chosen including the detail to show, the date range and the type of access:
After clicking “Start Publishing”, the links are generated:
The user can now either copy the links from this page, or via “Share” choose “Send Links to This Calendar…” which opens a new email with the two URLs attached.
Opening the calendar by the recipient is easy enough. For our first example, let’s have a look at Google Calendar. To add the shared calendar to Google Calendar, the end user chooses “Add” then “Add by URL”.
They pop in the iCalendar URL, and it shows up in the recipients Google Calendar. You’ll see below I’m subscribing to two Exchange 2010 SP1 calendars – my personal one and my team’s:
Again, the Calendars show perfectly:
Finally let’s not forget Outlook users, right click in the calendar list, choose “Add Calendar” and then select “From Internet…”
As above, after popping the iCalendar URLs in the subscriptions are created in the local Outlook client.
And, finally let’s not forget HTML sharing, which does exactly what you’d expect: