Problem with emails on Replies

My RT is installed and works except that when someone replies to a
ticket or updates the status and it is to supposed to email the
requester as well as other people in the group watching the queue.
However, it is not sending any of those emails. It also does not send
to anyone I manually put in the CC/BCC fields. But, it will send
emails to me indicating someone has submitted a new ticket. It
doesn’t come back with any errors messages… here is the actually
email it says it sends out… I am using RT 3.6 on Ubuntu, MySQL,
and fetchmail … thanks for any help!Subject: [Chemical Engineering Customer Helpdesk #9] WORK
From: “Ryan Walsh via RT” rt@XXX
Reply-To: rt@XXXX
References: RT-Ticket-9@XXX
Precedence: bulk
X-RT-Loop-Prevention: Chemical Engineering Customer Helpdesk
RT-Ticket: Chemical Engineering Customer Helpdesk #9
Managed-by: RT 3.6.5 (
Bcc: user1@XXXXX, user2@XXXX
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
X-RT-Original-Encoding: utf-8
Date: Thu, 19 Jun 2008 11:21:56 -0400
X-RT-Original-Encoding: utf-8

<URL: http://XXXXXXXXXX/rt/Ticket/Display.html?id=9 >


Ryan Walsh