How to Get Full Headers From Juno
On the drop down menu Options, choose Email Options (press ctrl-E). Under Show Message Headers, select the full option. Click the OK button to save the setting.
Juno version 4+ can display MIME and HTML email, but does not provide a way of Viewing the HTML Source for the message within Juno.
To get the full source, including HTML codes:
Our thanks to SpamCop for this information.
See Juno for additional information.