Missing From: headers when mail moved to other folders

[Vic Gedris]

Hi,

This is odd: When one of our staff members moves email
that he has sent into other mailboxes (to archive them in
more appropriate locations), the "From:" header seems to
disappear. This means that he can't see who sent the message.

Is there a setting that causes this, or perhaps this is a bug?

Any advice appreciated. Reply here, or email
(e-mail address removed)

Thanks,
Vic Gedris