[Dovecot] Postfix with Deliver (LDA) - user unknown

[Karin Gregorec]

Good Day All!  I am attempting to configure deliver as our LDA.  I am
also configuring the server to use Postfix instead of Sendmail.  I
have followed the all the documentation and examples I could find.

Below are my Dovecot and Postfix configs.  Can someone please smack me
upside the head and tell me why I am getting "user unknown" errors?
If i don't use deliver as the LDA, all works perfectly.  Help...

TIA,
glenn

==========


*** Dovecot Config ***

dovecot -n
# 1.0.5: /usr/local/etc/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/maillogs/dovecot.log
protocols: imap imaps pop3 pop3s
ssl_cipher_list: ALL:!LOW
disable_plaintext_auth: no
verbose_ssl: yes
login_dir: /var/run/dovecot/login
login_executable(default): /usr/local/libexec/dovecot/imap-login
login_executable(imap): /usr/local/libexec/dovecot/imap-login
login_executable(pop3): /usr/local/libexec/dovecot/pop3-login
login_greeting: GID Ready
login_log_format_elements: user=<%u> service=%s authMethod=%m rIP=%r
lIP=%l encryption=%c
login_max_processes_count: 256
verbose_proctitle: yes
first_valid_uid: 5000
last_valid_uid: 10000
first_valid_gid: 0
mail_extra_groups: mail
mail_location: maildir:~/Maildir
dotlock_use_excl: yes
fsync_disable: yes
maildir_copy_with_hardlinks: yes
mail_executable(default): /usr/local/libexec/dovecot/imap
mail_executable(imap): /usr/local/libexec/dovecot/imap
mail_executable(pop3): /usr/local/libexec/dovecot/pop3
mail_process_size: 1024
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(pop3):
mail_plugin_dir(default): /usr/local/lib/dovecot/imap
mail_plugin_dir(imap): /usr/local/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3
imap_client_workarounds(default): delay-newmail outlook-idle
netscape-eoh tb-extra-mailbox-sep
imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh
tb-extra-mailbox-sep
imap_client_workarounds(pop3): outlook-idle
pop3_uidl_format(default):
pop3_uidl_format(imap):
pop3_uidl_format(pop3): %08Xu%08Xv
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
pop3_logout_format(default): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
pop3_logout_format(imap): top=%t/%p, retr=%r/%b, del=%d/%m, size=%s
pop3_logout_format(pop3): top=%t/%T, retr=%r/%R, del=%d/%m, size=%s
auth default:
  cache_size: 1024
  cache_ttl: 604800
  verbose: yes
  passdb:
    driver: pam
    args: cache_key=%Lu
  userdb:
    driver: passwd
  socket:
    type: listen
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
      user: maildrop
plugin:
  quota: maildir:storage=10000000:ignore=Trash


*** Postfix main.cf ***

alias_database = hash:/etc/mail/postfix/aliases
alias_maps = hash:/etc/mail/postfix/aliases
biff = no
command_directory = /usr/local/sbin
daemon_directory = /usr/local/libexec/postfix

debug_peer_level = 2
debugger_command =
    PATH=/bin:/usr/bin:/usr/local/bin; export PATH; (echo cont;
    echo where) | gdb $daemon_directory/$process_name $process_id 2>&1
    >$config_directory/$process_name.$process_id.log & sleep 5

####    Dovecot LDA Service - http://wiki.dovecot.org/LDA/Postfix
dovecot_destination_recipient_limit = 1

home_mailbox = Maildir/
html_directory = no
inet_interfaces = all
mail_owner = postfix
mail_spool_directory = /var/mail
mailq_path = /usr/local/bin/mailq
manpage_directory = /usr/local/man
message_size_limit = 12000000
mydestination = $myhostname, localhost.$mydomain, localhost
mydomain = geekinternetdevelopment.com
myhostname = superman.geekinternetdevelopment.com
mynetworks = 72.18.193.0/24, 127.0.0.0/8
newaliases_path = /usr/local/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = no
sample_directory = /usr/local/etc/postfix
sendmail_path = /usr/local/sbin/sendmail
setgid_group = maildrop
smtpd_banner = $myhostname NO WHAMMIES!!!

virtual_gid_maps = static:5000
virtual_mailbox_base = /var/mailboxes
virtual_mailbox_domains = hash:/etc/mail/postfix/vdomains
virtual_mailbox_maps = hash:/etc/mail/postfix/vmailboxes
virtual_minimum_uid = 1000
virtual_transport = dovecot
virtual_uid_maps = static:5000
unknown_local_recipient_reject_code = 550

*** Postfix master.cf ***
...snip...
dovecot   unix  -       n       n       -       -       pipe
  flags=DRhu user=maildrop:maildrop
argv=/usr/local/libexec/dovecot/deliver -e -d ${recipient}