Using Evolution as CalDAV client, I'm also seeing unwanted notifications.

For example, when an attendee responds to my invitation, I get a 
prompt to update the status in my calendar. There is a checkbox "Send 
updates to attendees", which I leave unchecked and yet every attendee 
gets a notification email.

Jacques,

Thanks for the reply. This is really a headache. I have been doing a 
bunch of research on the problem. Here's what I have found and the 
situation in more detail.

I have a calendar with a bunch of old and current events that I want 
to copy from a personal calendar (A) to a calendar I am also using for 
my business (B). I have another calendar that I use at my employer?s.

Calendar A - uses ActiveSync
Calendar B - uses Caldav
Calendar C - uses Exchange

When I copy an event from C to A or A to C, no problem. Everything works.
However, when I copy from A to B or C to B, invitations erroneously 
get sent out to everyone on the event.

This caused a huge headache and was a little embarrassing because I 
did not realize that this was happening until a couple people called 
me about why I was resending old invitations.

I merely want to diarize these events in different calendars not 
resend invitations.

What is not clear is whether it is the client that is causing it or 
not. I use EmClient for my email client. When I just do a normal 
update it asks me if I want to send an update notification to the 
other participants. Even though I select no, about 5 minutes later a 
notification gets sent out.

So is that the client not telling the server to not send a 
notification or the server somehow deciding to? Why such a long delay?

Maybe you have the missing piece to this puzzle. Sorry for the long message.

To my knowledge, it has not been resolved, and it is a real pain !  My 
clients are going nuts with this issue...
The only way I found is not to accept invitations and to replicate the 
event in my diary... talk about low tech solution ...
If you hear about anything, I mean any way of sorting this out (apart 
from moving to an exchange hosting solution), I would really appreciate

Has this ever been resolved somehow? Every time I touch an event it 
sends out notifications to everyone on the event. For example, if I 
delete an old event it sends out notifications to everyone on the old 
event.

Hi all

CalDAV: Need to stop iCAL sending out notifications on any changes on events.

Any chance to modify something to disabling notification when a event 
get's updated and/or deleted?

I marked that question as 3. High. I did that, because the problem has 
high priority for me. Vote down if that does not have the same 
priority for you.