Thank you very much for your reply.
I uploaded my images on the Photoscene and I launched the processing successfully.
However, I would like to automate the sending of the result on my email address and not have to wait for the processing to finish to start the download command.
Therefore, I try to put into the Photoscene parameter callback "email://firstname.lastname@example.org" and I launched the processing of the Photoscene without the last 2 steps of "Create 3D Mesh from Photos" tutorial.
Unfortunately, I still haven't received anything until now. So, I am wondering if there is an additional step I am missing to get my result on my email automatically or if it is even possible ?