Re: Send email on new Teams message, include File attachment.
Hi @JohnStraumannPA
Accroding to your description, you want to send an email with an attachment when a new message is added:
I set up a flow, you can take a try with the following steps.



Expression:split(item()?['contentUrl'],'lilyteam')[1]
Note: ‘lilyteam’ is my Team name


Expression: base64(body('Get_file_content_using_path'))


When a new message is added with file

I will receive an email:

Hope the content above may help you.
Best Regards
If my solution helps, then please consider Accept it as the solution to help the other members find it more quickly.