[Dovecot] Dovecot LDA problem: dovecot: deliver(dave): Fatal: postmaster_address setting not given

[Dave100]

I have been trying to get the virtual domain and mailboxes working on an 
newly built Ubuntu 10.04 server and am stuck on this error.

System is using a postgres database and PostfixAdmin.

Thanks in advance for any help.
Dave


  ==> /var/log/mail.err <==
Jan 16 13:21:26 radius dovecot: deliver(dave at mydomain.com): Fatal: 
postmaster_address setting not given

==> /var/log/mail.log <==
Jan 16 13:21:26 radius dovecot: auth(default): master in: 
USER#0111#011dave at mydomain.com#011service=deliver
Jan 16 13:21:26 radius dovecot: auth(default): 
passwd(dave at mydomain.com): lookup
Jan 16 13:21:26 radius dovecot: auth(default): 
passwd(dave at mydomain.com): unknown user
Jan 16 13:21:26 radius dovecot: auth(default): sql(dave at mydomain.com): 
SELECT '/var/mail/mydomain.com/dave' as home, 
'maildir:/var/mail/mydomain.com/dave' as mail, 150 AS uid, 8 AS gid FROM 
mailbox WHERE username = 'dave at mydomain.com' AND active = true
Jan 16 13:21:26 radius dovecot: auth(default): master out: 
USER#0111#011dave at mydomain.com#011home=/var/mail/mydomain.com/dave#011mail=maildir:/var/mail/mydomain.com/dave#011uid=150#011gid=8 

Jan 16 13:21:26 radius dovecot: deliver(dave at mydomain.com): Fatal: 
postmaster_address setting not given
Jan 16 13:21:26 radius postfix/pipe[3213]: 54E024554: 
to=<dave at mydomain.com>, relay=dovecot, delay=21381, 
delays=21381/0.42/0/0.07, dsn=4.3.0, status=deferred (temporary failure)



# 1.2.9: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-27-generic i686 Ubuntu 10.04.1 LTS
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap pop3 imaps pop3s managesieve
listen: *,[::]
ssl_cert_file: /etc/ssl/certs/ssl-mail.pem
ssl_key_file: /etc/ssl/private/ssl-mail.key
ssl_cipher_list: 
ALL:!LOW:!SSLv2:ALL:!aNULL:!ADH:!eNULL:!EXP:RC4+RSA:+HIGH:+MEDIUM
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
login_executable(imap): /usr/lib/dovecot/imap-login
login_executable(pop3): /usr/lib/dovecot/pop3-login
login_executable(managesieve): /usr/lib/dovecot/managesieve-login
first_valid_uid: 150
first_valid_gid: 8
mail_privileged_group: mail
mail_uid: vmail
mail_gid: mail
mail_location: maildir:~/Maildir
mail_debug: yes
mbox_write_locks: fcntl dotlock
mail_executable(default): /usr/lib/dovecot/imap
mail_executable(imap): /usr/lib/dovecot/imap
mail_executable(pop3): /usr/lib/dovecot/pop3
mail_executable(managesieve): /usr/lib/dovecot/managesieve
mail_plugin_dir(default): /usr/lib/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap
mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3
mail_plugin_dir(managesieve): /usr/lib/dovecot/modules/managesieve
imap_client_workarounds(default): outlook-idle delay-newmail
imap_client_workarounds(imap): outlook-idle delay-newmail
imap_client_workarounds(pop3):
imap_client_workarounds(managesieve):
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
pop3_client_workarounds(managesieve):
lda:
   postmaster_address: postmaster at mydomain.com
   hosthame:
   deliver_log_format: msgid=%m: %$
   sendmail_path: /usr/lib/sendmail
   rejection_subject: Rejected: %s
   rejection_reason: Your message to <%t> was automatically rejected:%n%r
   auth_socket_path: /var/run/dovecot/auth-master
   mail_plugins: sieve
   quota_full_tempfail: yes
   deliver_log_format: msgid=%m: %$
   rejection_reason: Your message to <%t> was automatically rejected:%n%r
auth default:
   mechanisms: plain login
   verbose: yes
   debug: yes
   debug_passwords: yes
   passdb:
     driver: pam
   passdb:
     driver: sql
     args: /etc/dovecot/dovecot-sql.conf
   userdb:
     driver: passwd
   userdb:
     driver: sql
     args: /etc/dovecot/dovecot-sql.conf
   socket:
     type: listen
     client:
       path: /var/spool/postfix/private/auth-client
       mode: 432
     master:
       path: /var/run/dovecot/auth-master
       mode: 384
       user: vmail
       group: mail
   socket:
     type: listen
     client:
       path: /var/spool/postfix/private/dovecot-auth
       mode: 432
       user: postfix
       group: postfix
plugin:
   quota: maildir:storage=10240:messages=1000
   trash: /etc/dovecot/dovecot-trash.conf
   sieve: ~/.dovecot.sieve
   sieve_dir: ~/sieve