[Nmh-workers] temporary files

[Jon Steinhart]

Is there any way to change where nmh puts the draft temporary file?  Never
paid much attention to this before, but nmh creates a file named "@" in the
current directory when editing a draft.  Normally not a problem, but I'm
working on a project that uses Dropbox, and when I compose a message from a
shared directory those files are becoming publically visible to other users.
Big oops!

Jon