Name Service Error

I have the following in /etc/postfix/master.cf:

smtp inet n - y - - smtpd
-o content_filter=3Dsmtp:localhost:10025
-o myhostname=3Dhargrove.lubb.ttuhsc.edu
localhost:10026 inet n - n - 10 smtpd
-o content_filter=3D
-o myhostname=3Dlocalhost

spampd is running and listening on port 10025. It is configured to
hand-off to locahost:10026. To test this configuration, I am telnetting
to port 25 and sending email. The following error appears in the log:

Feb 9 20:34:45 hargrove postfix/smtp[30342]: 18ED26A407:
to=3D<email.address@domain.edu>, relay=3Dnone, delay=3D15, status=3Dbounc=
ed (Name
service error for name=3Dlocalhost type=3DA: Host not found)

I've googled and searched the archives, and the concensus seems to be tha=
t
I need to have localhost listed in mydestination, and I do.

Following is my postconf -n. If anyone can shed some light on this, I'd
appreciate it. Thanks.

# postconf -n

alias_database =3D hash:/etc/aliases
alias_maps =3D hash:/etc/aliases
append_dot_mydomain =3D no
command_directory =3D /usr/sbin
config_directory =3D /etc/postfix
content_filter =3D lmtp:localhost:10025
daemon_directory =3D /usr/lib/postfix
delay_warning_time =3D 4h
fast_flush_domains =3D $relay_domains
inet_interfaces =3D all
local_recipient_maps =3D
mail_owner =3D postfix
mail_spool_directory =3D /var/spool/postfix
mailq_path =3D /usr/bin/mailq
manpage_directory =3D /usr/share/man
mydestination =3D $myhostname, localhost, localhost.$mydomain
mydomain =3D ttuhsc.edu
myhostname =3D hargrove.lubb.ttuhsc.edu
mynetworks =3D 66.230.0/24, 127.0.0.0/24
myorigin =3D $mydomain
newaliases_path =3D /usr/bin/newaliases
program_directory =3D /usr/lib/postfix
relay_domains =3D physiology.ttuhsc.edu, ttmc.ttuhsc.edu, =
=20
ttmcelp.ttuhsc.edu, ttmcod.ttuhsc.edu,
relay_recipient_maps =3D hash:/etc/postfix/relay_recipients
relayhost =3D [shiner.lubb.ttuhsc.edu]
sample_directory =3D /etc/postfix/sample
sendmail_path =3D /usr/sbin/sendmail
setgid_group =3D postdrop
smtpd_banner =3D $myhostname ESMTP $mail_name
transport_maps =3D hash:/etc/postfix/transport

--
Steve
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http://www.exitwound.org......hard to find
http://www.buckowensfan.com...he's the man
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Tussman's Law: Nothing is as inevitable
as a mistake whose time has come.
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