How can I extract images from a raw email?
Well that was easier than I first thought. Must have been searching for the wrong thing:
$ sudo apt-get install mpack
$ munpack email.eml
cat.jpeg (image/jpg)
Fleur4.jpeg (image/jpg)
kasper.jpeg (image/jpg)
moreno.jpeg (image/jpg)
orla.jpeg (image/jpg)
oscar.jpeg (image/jpg)
saidi.jpeg (image/jpg)
teo.jpeg (image/jpg)
tigra.jpeg (image/jpg)