[Dovecot] Multiple identities

[Koenraad Lelong]

Hi,
I recently moved from courier-imap to dovecot, to be able to work with 
managesieve. I use version 1.2.5, on suse 10.3. I used the script to 
migrate the courier maildir to dovecot format.
It seems to work fine except for one problem : I use a number of 
aliasses and with Thunderbird I can select which alias (e-mail-address) 
to use as my identity when sending a mail.
I sniffed with wireshark, and with my standard identity, I see the 
message appended to "Sent", like I expect. If I use an alias, I see a 
folder being created : "INBOX.Sent", and then the message is appended there.
Why the difference ?
I'm trying to debug this but dovecot does not help much. I tried rawlog 
but there is no output (that I see) from it, no log-files in my maildir.

Any hints how to proceed ?

Output op dovecot -n :
# 1.2.5: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.22.19-0.4-default x86_64 openSUSE 10.3 (X86-64)
base_dir: /var/run/dovecot/
log_path: /var/log/dovecot
log_timestamp: %Y-%m-%d %H:%M:%S
listen: *:143
ssl_listen: *:993
ssl_ca_file: /etc/postfix/certificate/cacert.org.pem
ssl_cert_file: /etc/postfix/certificate/mailbox.pem
ssl_key_file: /etc/postfix/certificate/mailboxkey.pem
disable_plaintext_auth: no
verbose_ssl: yes
login_dir: /var/run/dovecot//login
login_executable: /usr/lib/dovecot/imap-login
first_valid_uid: 499
last_valid_uid: 499
mail_location: maildir:/var/vmail/%d/%u
mail_debug: yes
mail_executable: /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap
lda:
   postmaster_address: postmaster at mydomain.com
   sendmail_path: /usr/lib/sendmail
   auth_socket_path: /var/run/dovecot/auth-master
   mail_plugins: cmusieve
auth default:
   mechanisms: plain login
   user: nobody
   verbose: yes
   debug: yes
   passdb:
     driver: sql
     args: /etc/dovecot/dovecot-sql.conf
   userdb:
     driver: sql
     args: /etc/dovecot/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
       group: vmail

Kind regards,

Koenraad Lelong.