Sendmail email delays

[Tom Stuart]

I've been having trouble sending email that was sent via a process(swatch).
I can send emails fine via command-line and receive immediately to the
forwarded address. However when sent via swatch it can take 5-10 minutes.
These entries appear in /var/log/mailllog. Note this is all relating to the
same email and notice the 11 minute delay. Thanks in advance for any help.

Aug 15 14:35:12 firewall-1 sendmail[72747]: m7FKZCXf072747: from=username,
size=155, class=0, nrcpts=1, msgid=<
200808152035.m7FKZCXf072747 at firewall-1.xxx.com>, relay=root at l
ocalhost
Aug 15 14:35:12 firewall-1 sendmail[72747]: m7FKZCXf072747: to=root,
delay=00:00:00, mailer=relay, pri=30155, stat=queued
Aug 15 14:43:18 firewall-1 sendmail[72762]: m7FKhHx8072762: from=username,
size=0, class=0, nrcpts=0, relay=root at localhost
Aug 15 14:46:03 firewall-1 sm-mta[72794]: m7FKk3wc072794: from=<
username at firewall-1.xxx.com>, size=512, class=0, nrcpts=1, msgid=<
200808152035.m7FKZCXf072747 at firewall-1.xxx.com>, proto=ESMTP,
daemon=Daemon0, relay=localhost [127.0.0.1]
Aug 15 14:46:03 firewall-1 sm-msp-queue[72793]: m7FKZCXf072747: to=root,
ctladdr=username (1001/1001), delay=00:10:51, xdelay=00:00:00, mailer=relay,
pri=120155, relay=[127.0.0.1
] [127.0.0.1], dsn=2.0.0, stat=Sent (m7FKk3wc072794 Message accepted for
delivery)
Aug 15 14:46:03 firewall-1 sm-mta[72795]: m7FKk3wc072794: to=
username at xxx.com, ctladdr=<username at firewall-1.xxx.com> (1001/1001),
delay=00:00:00, xdelay=00:0
0:00, mailer=relay, pri=30809, relay=smtp.xxx.com. [10.0.0.2], dsn=2.0.0,
stat=Sent ( <200808152035.m7FKZCXf072747 at firewall-1.xxx.com> Queued mail for
delivery)


I think its important to know these details:
firewall-1# uname -a
FreeBSD firewall-1.xxx.com 7.0-RC1 FreeBSD 7.0-RC1 #2: Tue Feb  5 07:10:05
MST 2008     root at firewall-1.xxx:/usr/obj/usr/src/sys/FIREWALL-1  i386

There is a .forward file in /root to forward root's mail to
username at xxx.comwhich is to be sent via smarthost.

I have the smarthost "DS" parameter in /etc/mail/sendmail.cf configured to
use DSsmtp.xxx.com

/etc/hosts contains
localhost             127.0.0.1 firewall-1 firewall-1.xxx.com
smtp.xxx.com     10.0.0.2