[Mailman-Users] unknow address after creating list

[Jonis Maurin Ceara]

Hi

I have a new setup of mailman but i'm getting some errors.
After create a new list, i try to send any e-mail (request, subscribe, 
etc...) but i get an error message saying that user doesn't exist.
Aug  9 08:29:47 toyota postfix/virtual[23564]: 2FAD8E7B01: 
to=<teste-request at mouralacerda.edu.br>, relay=virtual, delay=10, 
status=bounced (unknown user: "teste-request at mouralacerda.edu.br")

My mm_cfg.py:
MTA = 'Postfix'
POSTFIX_ALIAS_CMD = '/usr/sbin/postalias'
POSTFIX_MAP_CMD = '/usr/sbin/postmap'
POSTFIX_STYLE_VIRTUAL_DOMAINS = ['mouralacerda.edu.br']
DEFAULT_EMAIL_HOST = 'mouralacerda.edu.br'
DEFAULT_URL_HOST = 'listas.mouralacerda.edu.br'
add_virtualhost(DEFAULT_URL_HOST, DEFAULT_EMAIL_HOST)

my main.cf of postfix:
(...)
alias_database = hash:/etc/aliases
local_destination_recipient_limit = 1
local_recipient_maps = unix:passwd.byname $alias_database
(...)
virtual_mailbox_base = /var/mail/virtual
virtual_mailbox_limit = 0
virtual_mailbox_domains = hash:/etc/postfix/vhcs2/domains
virtual_mailbox_maps = hash:/etc/postfix/vhcs2/mailboxes

virtual_alias_maps = hash:/etc/postfix/vhcs2/aliases,
                     hash:/usr/local/mailman/data/virtual-mailman

virtual_minimum_uid = 1001
virtual_uid_maps = static:1001
virtual_gid_maps = static:8
(...)

my virtual-mailman file:
# LOOP ADDRESSES START
mailman-loop at mouralacerda.edu.br        mailman-loop
# LOOP ADDRESSES END

# STANZA START: teste
# CREATED: Tue Aug  8 14:03:19 2006
teste at mouralacerda.edu.br              teste
teste-admin at mouralacerda.edu.br        teste-admin
teste-bounces at mouralacerda.edu.br      teste-bounces
teste-confirm at mouralacerda.edu.br      teste-confirm
teste-join at mouralacerda.edu.br         teste-join
teste-leave at mouralacerda.edu.br        teste-leave
teste-owner at mouralacerda.edu.br        teste-owner
teste-request at mouralacerda.edu.br      teste-request
teste-subscribe at mouralacerda.edu.br    teste-subscribe
teste-unsubscribe at mouralacerda.edu.br  teste-unsubscribe
# STANZA END: teste


what's wrong now? i can't find :(

Everything (except mailman) is working fine.