[Postfixbuch-users] pop3 newbie Problem

[Michael Ordnung]

Guten Abend,

hab meinen Server mal wieder neu installieren müssen.
Hab somit postfix neu eingerichtet nach dem Buch "Das Postfix Buch".
Domains und Aliases liegen in einer MySql DB.

Das Empfangen von Emails funktioniert. Maildir wird angelegt, Email 
kommt an.

Mein Problem ist nur, dass ich die Emails nicht über nen Client abrufen 
kann (über pop3) da der Daemon nicht auf den Port lauscht.
Hab davon nicht viel Ahnung und deswegen ist es vllt. etwas verwirrend.

Hier meine postconf -n:

alias_maps = hash:/etc/aliases
biff = no
canonical_maps = hash:/etc/postfix/canonical
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/lib/postfix
debug_peer_level = 2
defer_transports =
disable_dns_lookups = no
disable_mime_output_conversion = no
html_directory = /usr/share/doc/packages/postfix/html
inet_interfaces = all
inet_protocols = all
local_recipient_maps = mysql:/etc/postfix/ids.mysql
mail_owner = postfix
mail_spool_directory = /var/mail
mailbox_command =
mailbox_size_limit = 0
mailbox_transport =
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_domains =
masquerade_exceptions = root
message_size_limit = 10240000
mydestination = $myhostname, ebito.$mydomain
mydomain = ebito.de
myhostname = ebito.de
mynetworks_style = subnet
newaliases_path = /usr/bin/newaliases
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/packages/postfix/README_FILES
relay_domains = ebito.de
relayhost =
relocated_maps = hash:/etc/postfix/relocated
sample_directory = /usr/share/doc/packages/postfix/samples
sender_canonical_maps = hash:/etc/postfix/sender_canonical
sendmail_path = /usr/sbin/sendmail
setgid_group = maildrop
smtp_sasl_auth_enable = no
smtp_use_tls = no
smtpd_banner = $myhostname ESMTP
smtpd_client_restrictions =
smtpd_helo_required = no
smtpd_helo_restrictions =
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination
smtpd_sasl_auth_enable = no
smtpd_sender_restrictions = hash:/etc/postfix/access
smtpd_use_tls = no
strict_8bitmime = no
strict_rfc821_envelopes = no
transport_maps = hash:/etc/postfix/transport
unknown_local_recipient_reject_code = 550
virtual_alias_domains = hash:/etc/postfix/virtual
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_gid_maps = mysql:/etc/postfix/ids.mysql
virtual_mailbox_base = /var/spool/maildirs
virtual_mailbox_maps = mysql:/etc/postfix/mailbox.mysql
virtual_minimum_uid = 5000
virtual_uid_maps = mysql:/etc/postfix/ids.mysql

Hab es wie im Buch eingerichtet. Sprich courier-imap installiert und 
eingerichtet.
Jedoch kommt bei nmap localhost nur:


PORT     STATE SERVICE
21/tcp   open  ftp
22/tcp   open  ssh
25/tcp   open  smtp
80/tcp   open  http
443/tcp  open  https
3306/tcp open  mysql


courier hab ich gestartet!


Danke schon mal für eure Hilfe.


gruß