At the moment if someone posts on a channel via email, if it is long enough, the content is cut part off way through. The only option is to "View original email" which downloads the .eml which Apple Mail tries to open. I don't have Apple Mail configured so I have to close apple mail and open the file in a text editor.
It would be so helpful to expand message in the channel to see the entire contents of the email.
I see it now. It seems this depends also on the size of the email.
The message is:
The email message is too large to display here. Click on "View original email" below to see it.
I think though this kills the actual functionality for Teams. Because MS Teams have to have a cut over. If the document is big enough they can share it as a document or a wiki in the team. I think the use of it is for small emails but if you want to share something bigger you can use other tools with this solution.