OneNote drawing markup affects ability to email to Teams Channel
I use OneNote to capture screenshots to support my users. I often times use the drawing capability to markup the screenshots. I will then email the page to a list of users as well as email our support channel within Teams. What i've noticed is that if there is drawing markup in the OneNote page, Teams will reject the email message. If you remove the markup and just leave the text and screenshots, the email gets posted to the conversation in the channel successfully.