79 votes27 comments · Microsoft Graph Feature Requests » Mail (Outlook) · Flag idea as inappropriate… · Admin →
Dear Microsoft Graph developer,
We are excited to announce that this feature is now available via Microsoft Graph beta endpoint for you to try. You can find more details on the release @ https://developer.microsoft.com/en-us/office/blogs/attaching-large-files-to-outlook-messages-in-microsoft-graph-preview/
Please keep sharing your feedback, feature requests via the UserVoice forum.
Senior Program Manager
Microsoft Graphlvrmsc commented
Thanks for this addition. It mostly works. Though three secondary issues arise.
1. Why don't you require a "@odata.type": "#microsoft.graph.fileAttachment" as the content for /attachments/createUploadSession, instead of this "AttachmentItem" coming from nowhere? For one thing, it would allow setting the content-type.
2. Are you aware that the HTTP servers referenced in the uploadUrl (https://outlook.office.com/api/beta/...) do not accept content-encoding chunked?
3. Weren't the https://outlook.office.com/api somehow deprecated in favour of graph.microsoft.com? Does it make sense to host the upload sessions over there, instead of on graph.microsoft.com?lvrmsc commented