You have to create a new local notebook,
Copy this section to this local notebook,
Then, find the .one file of this local section.
Drag and drop it into an Outlook message to send.
Gem for OneNote v36 add a new feature to help you easily create an email in Outlook, and append current OneNote section .one file as attachment into this Outlook email.
Send an OneNote Section File Through Outlook
At first, navigate to the section which you want to email.
Then, in "Gem for OneNote" -> "Cooperation" tab -> "Outlook" group -> "New" menu -> "Email Section" item.
Gem will create a new Outlook email, and append the .one file of current OneNote section as attachment.
After received this email, you can click on the .one file in Outlook.
Outlook will open this .one file by OneNote to view it.
If you want to edit it, you need to save this .one file to desktop, and double click on it. System will use OneNote to open this .one file and you can edit it.