Slow sendmail start up

[T o n g <mlist4suntong@yahoo.com>]

Hi,

There is an extremely long delay when sendmail first start up, right when:

 Starting Mail Transport Agent (MTA): sendmail

The googled answer that I get is to put in startic IP, or use full host 
name, but this is a live system. Is there any other way to solve it?

Moreover, I just can't understand the

 can not chdir(/var/spool/mqueue-client/): Permission denied

error. 

Please help.

Thanks

root@depen ~ # cat /var/log/mail.log
Sep 24 23:14:30 depen sm-mta[2268]: My unqualified host name (depen) 
unknown; sleeping for retry
Sep 24 23:14:31 depen sm-msp-queue[2275]: My unqualified host name (depen) 
unknown; sleeping for retry
Sep 24 23:15:30 depen sm-mta[2268]: unable to qualify my own domain name 
(depen) -- using short name
Sep 24 23:15:30 depen sm-mta[2278]: starting daemon (8.14.3): SMTP
+queueing@00:10:00
Sep 24 23:15:31 depen sm-msp-queue[2275]: unable to qualify my own domain 
name (depen) -- using short name
Sep 24 23:15:31 depen sm-msp-queue[2275]: NOQUEUE: SYSERR(UID0): can not 
chdir(/var/spool/mqueue-client/): Permission denied

root@depen ~ # ls -ld /var/spool/mqueue-client/
drwxrws--- 2 smmsp smmsp 3 2010-07-17 06:46 /var/spool/mqueue-client//

root@depen ~ # head -1 /etc/hostname /etc/hosts
==> /etc/hostname <==
depen

==> /etc/hosts <==
127.0.0.1       depen    localhost

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