public folders

Exchange Online administrators across multiple tenants are reporting a troubling and repeatable symptom: attempts to change Public Folder permissions are being rejected with access-denied or “permission change is denied” errors, and the problem appears to have affected multiple tenants over the...

Microsoft’s Exchange Online team has published clear, actionable guidance that demystifies how retention and recovery behave for Exchange Online public folders — and why administrators should treat public-folder retention differently from mailbox retention policies to avoid surprise data loss...