> Well, if this were sendmail, it would have sent the warning message after 
> having tried to send the original message for four hours.  But, sendmail 
> would only have sent the warning message _once_ instead of after each and 
> every delivery attempt!
> 
> One more reason not to use qmail?

As I believe someone already pointed out, this has nothing to do with
sendmail or qmail (although the bounces are definitely coming from a
sendmail), but with the FirstClass BBS gateway.  It looks like that
software needs someone to overhaul it with the RFCs in-hand...

Anyway, it appears that someone's unsubscribed fcgate@leaf.maple.or.jp
from port-mac68k.

-allen

-- 
              Allen Briggs - end killing - briggs@macbsd.com