Upload Email as File Attachment
Outlook Desktop App:
Instructions for saving an email as a file attachment.
Method 1: Select email message in Outlook > Click File > Save As > Save as type .msg with desired file name in a folder. File can now be attached to other emails or uploaded as a file.
Method 2: Open File Explore folder where you want to save the file. Open Outlook, select the email and drag it into the file folder. File can now be attached to other emails or uploaded as a file.
Outlook Online Web Mail: