disabling notifications from events and calendar

disabling notifications from events and calendar

Hi all,
I have tried to find an anser to this in th forum, but without success...
My question is:
Each time some one is posting something on the calendar or in the events, all users get a notification about it in the e-mail.
Is it possible to completely disable this function??
Every user is checking the personal and group calendar and events on a daily base so we do not need this function. We use the calendar a lot so you can imagen that the e-mail inbox get's a lot of messages!
Please let me know.
Thanks,
P.