I have this challenge with mail eating functionality on SDM r14.1
My mail eater does not display the content of the email in the body (description) of the incident, Rather it attaches the mail as .eml file in the incident attachment tab.
This was working well when i was using Lotus Notes but not working now after migrated to Outlook 2013
Below is the sample of a request created via the email
|Created via EMAIL interface by firstname.lastname@example.org.|