I want email notifications to be sent to my outlook when someone shares, tags me in a comment, replies to my comments in Sharepoint and OneDrive

1. Configuration location for @mention email notifications

For SharePoint pages and news posts, email notifications (including @mentions) are controlled by each user’s SharePoint email notification preferences:

1. Go to the SharePoint start page.
2. Select Settings (gear icon) at the top right.
3. Select Email notification settings.
4. Turn on the toggles for the notifications to receive (for example, when someone likes or comments on a page or news post created, or mentions using @).

When enabled, SharePoint sends email notifications automatically. These are standard email messages and will be delivered to whatever primary email address is associated with the Microsoft 365 account (which can be a non-Microsoft address if configured that way by the organization).

For OneDrive/SharePoint file comments (Word, Excel, PowerPoint stored in OneDrive/SharePoint):

• When someone @mentions a user in a comment, an email notification is sent that includes a link to the comment and a preview of the text and thread, and the user can respond directly from the email using Outlook for Windows, Outlook on the web, or Outlook Mobile.
• There is no separate end-user toggle in the provided context to switch between “in-app only” and “email + in-app”; email notifications are part of the built-in behavior for @mentions.

Admins can globally control some related behaviors:

• OneDrive/SharePoint file activity notifications (including @mentions) can be allowed or blocked tenant-wide:
  1. In the SharePoint admin center, go to Settings.
  2. Select the Notifications setting for OneDrive.
  3. Select or clear Allow notifications.
  4. Alternatively, use PowerShell: Set-SPOTenant -NotificationsInOneDriveForBusinessEnabled.

If this setting is disabled, users will not receive these notifications.

2. Consistency across Word, Excel, and PowerPoint Online

For documents stored in OneDrive or SharePoint:

• In Word, Excel, and PowerPoint, when someone mentions a user in a comment, an email notification is sent with:
  • A link to the comment in the file.
  • A preview of the text and comment thread.
  • The ability to reply directly from the email (when using Outlook for Windows, Outlook on the web, or Outlook Mobile).

This behavior is described generically for Word, Excel, and PowerPoint and applies consistently across these apps when used with OneDrive/SharePoint storage.

3. Routing notifications to non-Microsoft email (e.g., Gmail)

The context does not describe a special routing feature specifically for sending @mention notifications to an arbitrary external mailbox. Instead:

• Notifications are sent to the email address associated with the Microsoft 365 account.
• If the organization has configured user identities so that the sign-in/primary email for the Microsoft 365 account is a non-Microsoft address (such as a corporate Gmail address), notifications will go there automatically.
• The context does not document a separate, official per-user setting to specify a different destination mailbox for @mention notifications beyond the account’s primary email.

If the Microsoft 365 account’s primary email is an Outlook/Microsoft mailbox and the goal is to deliver notifications to Gmail, the context does not provide an alternative mechanism other than what the tenant or mail admin might configure (for example, forwarding rules in the mailbox). No additional official routing mechanism for @mention notifications is described in the provided documentation.

References:

• Use @mention in comments to tag someone for feedback
• Turn on OneDrive file activity notifications
• Set your SharePoint email notification preferences
• Why am I receiving notifications for lists, forms in lists, or libraries?