Ensure source is also processed fix mboxo 'From ' escaping
Ensure source is also processed fix mboxo 'From ' escaping

This is a follow-up to commit:
d23d649ae46ecb17d5331571c09d6fa58a9b3859
jimjag/ponymail,Humbedooh/ponymail,Humbedooh/ponymail,jimjag/ponymail,jimjag/ponymail,quenda/ponymail,quenda/ponymail,Humbedooh/ponymail,jimjag/ponymail,quenda/ponymail