%|\
%(lit)%(formataddr %<{mail-reply-to}%?{reply-to}%?{from}%?{sender}%?{return-path}%>)\
%<(nonnull)%(void(width))%(putaddr To: )\n%>\
%|\
%(lit)%(formataddr %<{mail-reply-to}%?{reply-to}%?{from}%?{sender}%?{return-path}%>)\
%<(nonnull)%(void(width))%(putaddr To: )\n%>\
%;
%; Make References: and In-reply-to: fields for threading.
%; Use (void), (trim) and (putstr) to eat trailing whitespace.
%;
%; Make References: and In-reply-to: fields for threading.
%; Use (void), (trim) and (putstr) to eat trailing whitespace.