I sometimes receive emails with .ics file attachments. Mail.app automatically adds these events to my iCloud Calendar as soon as I preview the message.

How can I disable this behaviour and only add the event if I click on the attachment manually?

1 Answer 1


There are web app preferences to manage this in newer macOS.

In the Mail.app go to Preferences->general. There is an option "Add invitations to ICal" which is Automatic or None. You need to choose None.

Mail preferences

When you have a mail with date and time in Mail.App will highlight that and clicking on that will add an event to iCal.

  • Doh! I swear I looked in the preferences - but it was hiding right there in the middle :) Thanks! Mar 12, 2012 at 13:02

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