Unable to attach files in Outlook.com - Microsoft Support
https://support.microsoft.com/en-au/office/unable-to-attach-files-in-outlook-com-9e1f02c0-ac68-4e7b-b6fe-7a4075976e42
WEBNov 6, 2023 · Reply, Forward or create a new email message or calendar event. Select Attach. If the file is already in your OneDrive, choose OneDrive. If the file is not in OneDrive, choose Upload and share. Pick the item (s) to attach and select Share link. You can also use Copy link of an Office or OneDrive file or paste it into your email.
DA: 11 PA: 28 MOZ Rank: 23