[Dovecot] lda: duplicate prefix?

[Larry Rosenman]

I've just started using Dovecot, and can't seem to get the LDA to work.

I get the  following error:
Mar  4 00:47:19 thebighonker dovecot: lda(ler): Error: user ler:
Initialization failed: namespace configuration error: Duplicate namespace
prefix: ""
Mar  4 00:47:19 thebighonker dovecot: lda(ler): Fatal: Invalid user
settings. Refer to server log for more information.
Mar  4 00:47:19 thebighonker exim[76281]: 1UCPB8-000JqI-L7 ==
/home/ler/clamav-rules <ler at lerctr.org> R=userforward
T=address_file_dovecot defer (0): Child process of address_file_dovecot
transport returned 75 (could mean temporary error) from command:
/usr/local/libexec/dovecot/dovecot-lda


dovecot -n attached.

the invocation from my exim config for other than inbox:

address_file_dovecot:
  driver = pipe

  # Use /usr/lib/dovecot/dovecot-lda  if using Debian's package.
  # You may or may not want to add -d $local_part@$domain depending on if
you ne
ed a userdb lookup done.
  command = /usr/local/libexec/dovecot/dovecot-lda -f $sender_address -m
~/mail/
${sg{$address_file}{$home}{}}

  message_prefix =
  message_suffix =
  log_output
  delivery_date_add
  envelope_to_add
  return_path_add
  #group = mail
  #mode = 0660
  temp_errors = 64 : 69 : 70: 71 : 72 : 73 : 74 : 75 : 78


What am I doing wrong?
-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640 (c)     E-Mail: larryrtx at gmail.com
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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