Disable all calendar notifications

Copper Contributor

I've got a real weird one here.


Customer wants to disable all calendar notifications / alerts for the whole company. They dont want to receive any kind of calendar notification on outlook desktop client, iphone, android, etc.


Customer is exchange 2016 on prem only.


There a way to do this?

3 Replies
Do you mean reminders for upcoming events? Afaik there is no way to turn those off globally, as the reminder is configured for each event/meeting request individually. You can disable the "Default reminders" option in Outlook on the desktop, which I suppose you can also control via GPOs. For OWA, you can toggle the RemindersEnabled, ReminderSoundEnabled and DefaultReminderTime settings via Set-MailboxCalendarConfiguration. For mobiles, you'll likely have to rely on the OS notification controls, Outlook mobile does allow for some granularity.

@Vasil Michev 


Think I might have found a way to do this after all based on this article:



Ran the command through a powershell script that targets all mailboxes:


ForEach ($Mailbox in (Get-Mailbox -RecipientTypeDetails UserMailbox))


{ Set-MailboxCalendarConfiguration -Identity $Mailbox -RemindersEnabled:$false -DefaultReminderTime 00:00:00 }

That only affects OWA though, no other clients.