Some Background...
We recently migrated from Exchange 2003 to Office 365 and previously we had a user that created a recurring calendar entry; The user is no longer here and was not migrated to Office 365 the calendar entry is still coming up with reminders for everyone.
I would like to remove this calendar entry from everyones calendar without going around to the 100+ desktops and manually removing.
There used to be a way using Powershell to remove the calendar entries using SubjectKeywords but I can't find a working Powershell command to remove this recurring calendar entry for Office 365.
So my question is this: Is there a Powershell command I can use to remove this recurring calendar entry?