I don't think this is supported as I have done some research.
Here is an example from a email endpoint.
LiveCycle ES has processed your request and attached the results (if there were any) in this email.
This response to your original email Subject:Data from EXT375 (1) Date Sent:Monday, August 31, 2009 3:23 PM Body:The attached file contains data that was entered into a form. It is not the form itself.
The recipient of this data file should save it locally with a unique name. Adobe Acrobat Professional 7 or later can process this data by importing it back into the blank form or creating a spreadsheet from several data files. See Help in Adobe Acrobat Professional 7 or later for more details. Attachments:EXT375 (1).pdf
Do we have a way to modify these?
I would need to see this in french also, it could be in the same email but I do need a way to edit this.
Also email sent when tasks are moved in the workflow.