set up mbox_source as binary blob
set up mbox_source as binary blob

jimjag/ponymail,Humbedooh/ponymail,Humbedooh/ponymail,quenda/ponymail,jimjag/ponymail,rbowen/ponymail,rbowen/ponymail,Humbedooh/ponymail,quenda/ponymail,rbowen/ponymail,jimjag/ponymail,quenda/ponymail,jimjag/ponymail