iCal CalDAV multiple alarm notification
By AndreasB-Oracle on Jun 20, 2011
In case you work with Apple iCal CalDAV Client you might noticed an issue with several alarm notification was send / received. So Alice add Calendar of Mike in iCal, Mike created an event with email alarm notification for Tom. Guess what, Tom will receive an email alarm notification from Mike and Alice.
So whenever you add Calendars which are not your own Calendar in iCal you should use the Option Ignore Alarms