John B Harlan <[log in to unmask]> writes:
 
>      Are there any other options for the list header keyword,
> Errors-to=, other than Owner and Postmaster?  Can a third-party
> e-mail address be specified?
 
*  Errors-To= [log in to unmask]
 
> Is there anything like a None value (dangerous though that might
> be)?
 
What in the world *for*?
 
Steve