How do I know? I'm a techie. :-) From a utilitarian perspective, most emails I don't need to keep around once I'm done reading them, so any copy is a backup (

How do I know? I'm a techie. :-) From a utilitarian perspective, most emails I don't need to keep around once I'm done reading them, so any copy is a backup (just in case I need it again, but not because I know I'll need it again). If I know I'll need it again, then the online copy is the instrument of record. From a multiple copy standpoint, if I don't clear my browser cache, the online form is a backup, (one could "argue").