For Outlook High Quality - Mimecast Download

If you are on Microsoft 365, check if your IT team has deployed the Mimecast App for Outlook (Store Add-in) . This is a lighter, modern web-based add-in that installs automatically via the Microsoft 365 admin center, requiring no manual download from you.

(never) – If it’s not from mimecast.com or your internal software center, assume it’s malicious. Outlook plugins are a common vector for credential harvesters. mimecast download for outlook