By default, each newly created organizational unit (OU) in the access list includes read permission for the group Authenticated Users (built-in group). This allows all users of the domain to be able to view the contents of any OU in Active Directory using Active Directory Users and Computers snap-in.
This is a tutorial on adding calendar permissions in Office 365 for your users via Powershell. You can add permissions onto a specific mailbox, or you can add it onto a security group. Office 365 Calendar Permissions Step 1 The first is step is to launch Windows Powershell. I
If you are dealing with guest writers, they are most likely set to the contributor role in WordPress. The one problem with the default contributor role is that this doesn’t allow contributors to add images to their posts. There are a lot of WordPress role editing plugins out there,