A few days ago i got serialization over email working. AFAIK, this is a world’s first. The support works using a plugin which registers a mailto protocol handler, using the mailx program to perform the actual mail delivery.
As of s11n 1.3.0, it will be possible to save your objects to email:
s11nlite::save( myobject, “mailto://firstname.lastname@example.org/my_file.s11n” );