Email customization for Site Lifecycle Management policies is now generally available in the SharePoint Admin Center. Admins can tailor notification emails sent to site owners across all SLM policy types.
Status: Generally available (January 28, 2026)
Scope: All SLM policy types (inactive site, site ownership, site attestation)
Customizable: Subject lines, message bodies, and guidance URLs
Prerequisite: Custom domain email must be configured in Microsoft admin center
License: SharePoint Advanced Management or Microsoft 365 Copilot
Admins can modify emails for both new and existing policies via Edit configuration. If custom domain sending is not configured in the Microsoft admin center, a warning appears and customization is unavailable. Default emails from noreply@sharepoint.com continue to work if no customization is applied. No action is required for organizations satisfied with the default notification emails.
Sources: MC1222976 · Microsoft Learn