Email attachments from arduino as an SMTP client

My main objective is to transfer pictures from the JPEG cam that I posted above and I wanted to do it via ethernet shield/ arduino black widow shield. I am looking into best methods to do this.

Now that I posted here, I am able to gauge the possibilities before I hit a dead end. From what I read, the camera that I posted in my previous thread generates images from 3KB to 9KB. I do not want my arduino to be tethered to a computer via USB.

Will something like make sense for a picture transfer?

He has installed Linux inside an Asus router. Will hosting a mail client inside the router be a more sensible solution?