As a new listowner, I've noticed that a number of messages written (it
turned out) in MS IE Mail bounced to me as delivery errors when they were
replies quoting another message and its header. No other e-mail software
has had this problem (so far).

I see a reference in the manual to this kind of quote problem. Is there a
workaround for MS IE users? Is there any other e-mail software that causes
this type of problem?