Share and collaborate with Outlook on the web
Share a file in a message
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Select New message.
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On the toolbar, select Attach > Browse cloud locations.
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Choose the file you want to attach from the different options:
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Computer
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OneDrive
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Recent attachments
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Email messages
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Select if you want to:
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Share as a OneDrive link
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Attach as a copy
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![Sharing files in Outlook on the web](https://cxcs.microsoft.net/static/public/central/neutral/5d71dbd7-f9ff-4090-a4eb-7d2f165d2acd/e1c065b1522eb8631623718eaf539e875d0f07cd.png)
Use @mentions to get someone's attention
In the body of the email message or calendar invitation:
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Type the @ symbol and the first few letters of a contact's first or last name.
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Choose a contact from the list.
This adds the contact to the To line of the email message or meeting invitation.
Note: @mentions are only available for Exchange Server 2016, Exchange Online, or Outlook.com users.
![@mentions in Outlook on the web](https://cxcs.microsoft.net/static/public/central/neutral/2ea9c37d-9ab0-4e8a-bdb7-102a6d05389f/8ced65cc3c6426f63f245a3ff8cca4edbe929355.png)