[Dovecot] Dovecot sieve plugin reject not working

[Andrew Schulman]

> When I send message from yahoo.com to my cjay at engr2.colostate.edu
> account on this server no rejection notice is being sent back.  It looks
> like at the end of the log file section below that it is sending
> something back, but nothing shows up. Also see how the "From" is empty?
> I don't think this is postfix problem as I can send and receive mail
> through it fine.

I reported a related bug with the reject action here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=489760 .  Seems to be different
from your case, though.