Updated subject lines for email communications from Message center

As part of the renewal of email notifications from Message center, subject lines for “Message Center Major Change Update Notification” and “Message Center Data Privacy Message Notification” will be updated.

When this will happen

We will be making this change in mid-February and expect to complete by the end of February.

How this will affect your organization

  • “Message Center Major Change Update Notification” will be updated to “Major update from Message center”
  • “Message Center Data Privacy Message Notification” will be updated to “Data privacy notification available in Message center.”

Note: sender display name and email address (o365mc@microsoft.com) will not be updated.

What you need to do to prepare

If you are an admin subscribed to these Message center emails and are using a rule to filter them, you may need to update the rule to reflect the new subject lines.


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I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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