[Dovecot] Dovecot as LDA issues - please help

[Placid Publishing, LLC]

I'm trying to get dovecot to work as an LDA with dspam; so I can run the 
dspam dovecot plugin for drag and drop spam/ham learning. Here is my 
config info:

Version 1.0.5
base_dir: /var/run/dovecot/
protocols: imap imaps pop3 pop3s
ssl_cipher_list: ALL:!LOW
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: Welcome Mail.
login_processes_count: 1
login_max_processes_count: 10
max_mail_processes: 20
verbose_proctitle: yes
first_valid_uid: 1000
first_valid_gid: 1000
mail_extra_groups: mail
mail_location: maildir:/usr/local/virtual/%d/%n
mail_debug: 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_plugins(default): dspam
mail_plugins(imap): dspam
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_no_flag_updates(default): no
pop3_no_flag_updates(imap): no
pop3_no_flag_updates(pop3): yes
pop3_lock_session(default): no
pop3_lock_session(imap): no
pop3_lock_session(pop3): yes
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
auth default:
  mechanisms: plain login
  passdb:
    driver: sql
    args: /usr/local/etc/dovecot-sql.conf
  userdb:
    driver: prefetch
  userdb:
    driver: sql
    args: /usr/local/etc/dovecot-sql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 432
      user: vmail

dovecot-sql config:
driver = mysql
password_query = SELECT password, 1011 AS uid, 1011 AS gid FROM users 
WHERE userid = '%u'
user_query = SELECT 1011 AS uid, 1011 AS gid FROM users WHERE userid = '%u'

dspam.conf (for delivery):
TrustedDeliveryAgent "/usr/local/libexec/dovecot/deliver -d %u"
UntrustedDeliveryAgent "/usr/local/libexec/dovecot/deliver -d %u"
QuarantineAgent "/usr/local/libexec/dovecot/deliver -d %u -m Junk

The error I get when running /usr/local/libexec/dovecot/deliver -c 
dovecot.conf -d username
Sep 19 22:55:57 pelorus dovecot: auth-worker(default): mysql: Connected 
to localhost (db)
Sep 19 22:55:57 pelorus deliver(support): auth input: support
Sep 19 22:55:57 pelorus deliver(support): auth input: uid=1011
Sep 19 22:55:57 pelorus deliver(support): auth input: gid=1011
Sep 19 22:55:57 pelorus deliver(support): chdir(/root) failed: 
Permission denied
Sep 19 22:55:57 pelorus deliver(support): maildir: 
data=/usr/local/virtual//support
Sep 19 22:55:57 pelorus deliver(support): maildir: 
root=/usr/local/virtual//support, index=/usr/local/virtual//support, 
control=, inbox=


maillog output when trying to deliver mail:
Sep 19 22:57:13 pelorus postfix/smtpd[38846]: connect from 
py-out-1112.google.com[64.233.166.179]
Sep 19 22:57:14 pelorus postfix/smtpd[38846]: NOQUEUE: filter: RCPT from 
py-out-1112.google.com[64.233.166.179]: <user at domain.com>: Recipient 
address triggers FILTER dspam:unix:/var/run/dspam/dspam.sock; 
from=<user at gmail.com> to=<support at exotixboard.com> proto=ESMTP 
helo=<py-out-1112.google.com>
Sep 19 22:57:14 pelorus postfix/smtpd[38846]: B868B6CF83: 
client=py-out-1112.google.com[64.233.166.179]
Sep 19 22:57:14 pelorus postfix/cleanup[38853]: B868B6CF83: 
message-id=<436c6f2f0709192057w17904ae5m83655736dc01929a at mail.gmail.com>
Sep 19 22:57:14 pelorus postfix/qmgr[33660]: B868B6CF83: 
from=<user at gmail.com>, size=2040, nrcpt=1 (queue active)
*Sep 19 22:57:14 pelorus dspam[33675]: Delivery agent returned exit code 
67: /usr/local/libexec/dovecot/deliver -d user at domain.com*
Sep 19 22:57:14 pelorus postfix/lmtp[38854]: B868B6CF83: 
to=<user at domain.com>, relay=mail2.domain.com[/var/run/dspam/dspam.sock], 
delay=1, delays=1/0/0/0.02, dsn=4.3.0, status=deferred (host 
mail2.exotixboard.com[/var/run/dspam/dspam.sock] said: 421 4.3.0 
<user at domain.com> Auto-Whitelisted (in reply to end of DATA command))

My virtual users directory (/usr/local/virtual) is chowned vmail:vmail 
is chmodded 0777 for testing purposes.

My question is, how can I get this to work? What is the "Sep 19 22:55:57 
pelorus deliver(support): chdir(/root) failed: Permission denied"error 
from? Why doesn't the deliver work? Any help, input, or suggestions 
would be greatly appreciated.