[Postfixbuch-users] Recipient address rejected: Access denied

[spamvoll at googlemail.com]

moin

ich habe grade meine VM server auf echte Hardware umgezogen.
Es gibt zwei server, smtp.example.com und imap.example.com.
Wenn ich jetzt probiere eine mail auf smtp.example,com einzuliefern
wird die gecheckt und dann an den imap übergeben.
Dieder bringt dann die Fehlermeldung:

Feb 10 12:58:49 imap postfix/smtpd[4011]: NOQUEUE: reject: RCPT from
host56.example.com[1.2.3.4]: 554 5.7.1 <name at example2.com>: Recipient
address rejected: Access denied; from=<> to=<myname at example.com>
proto=ESMTP helo=<smtp.example.com>

ich bin grad nen bischen ratlos was auf dem imap zu einem reject führt.

postconf -n vom imap
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases, ldap:/etc/postfix/ldap-aliases.cf
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
home_mailbox = Maildir/
html_directory = no
inet_interfaces = $myhostname, localhost
mail_owner = postfix
mailq_path = /usr/bin/mailq.postfix
manpage_directory = /usr/share/man
mydestination = $myhostname, localhost.$mydomain, localhost
myhostname = imap.example.com
mynetworks = smtp.example.com
newaliases_path = /usr/bin/newaliases.postfix
queue_directory = /var/spool/postfix
readme_directory = /usr/share/doc/postfix-2.3.3/README_FILES
relay_domains = proxy:ldap:/etc/postfix/ldap-relay_domains.cf
sample_directory = /usr/share/doc/postfix-2.3.3/samples
sendmail_path = /usr/sbin/sendmail.postfix
setgid_group = postdrop
smtpd_recipient_restrictions = permit_mynetworks, reject
transport_maps = btree:/etc/postfix/transport
unknown_local_recipient_reject_code = 550

in meiner transport steht dovecot: