Recipient address rejected: User unknown in virtual mailbox table-bei einigen Domains

[pk-dragon]

Moin Leute

Ich hab hier grad ein kleines Problem wo ich schon bisschen Länger nach Google. Denk mal für euch ist das kein Problem.

Erst mal der Log beim Empfänger:

Oct  6 20:46:43 host postfix/smtpd[12631]: connect from unknown[xx.xx.xx.xx]
Oct  6 20:46:43 hostpostfix/smtpd[12631]: NOQUEUE: reject: RCPT from unknown[xx.xx.xx.xx]: 550 5.1.1 <xxx@domain.tpl>: Recipient address rejected: User unknown in virtual mailbox table; from=<yyy@domain.tpl> to=<xxx@domain.tpl> proto=ESMTP helo=<[10.150.121.201]>
Oct  6 20:46:52 host postfix/smtpd[12631]: disconnect from unknown[xx.xx.xx.xx]

Log auf SMTP-Server

Oct  6 16:13:19 localhost postfix/qmgr[21353]: 5B638AAC25C: from=<xxx@domain.tpl>, size=563, nrcpt=1 (queue active)
Oct  6 16:13:19 localhost postfix/smtp[21395]: 5B638AAC25C: to=<yyy@domain.tpl>, relay=mail.domain.tpl[xx.xx.xx.xx]:25, delay=964, delays=964/0.01/0.02/0.02, dsn=4.7.1, status=deferred (host mail.domain.tpl[xx.xx.xx.xx] said: 450 4.7.1 Client host rejected: cannot find your hostname, [yy.yy.yy.yy] (in reply to RCPT TO command))
Oct  6 18:33:19 localhost postfix/qmgr[21353]: 5B638AAC25C: from=<yyy@domain.tpl>, size=563, nrcpt=1 (queue active)
Oct  6 18:33:19 localhost postfix/smtp[25695]: 5B638AAC25C: to=<xxx@domain.tpl>, relay=mail.domain.tpl[93.92.41.90]:25, delay=2164, delays=2164/0.01/0.02/0.02, dsn=4.7.1, status=deferred (host mail.domain.tpl[xx.xx.xx.xx] said: 450 4.7.1 Client host rejected: cannot find your hostname, [yy.yy.yy.yy] (in reply to RCPT TO command))

SMTP - Postfix Konfig:

# Postfix programs paths settings
command_directory = /usr/sbin
daemon_directory = /usr/lib/postfix
program_directory = /usr/lib/postfix
sendmail_path = /usr/sbin/sendmail

## General Postfix configuration
# should be the default domain from your provider eg. "server100.provider.tld"
mydomain = domain.tpl

# should be different from $mydomain eg. "mail.$mydomain"
myhostname = mail.$mydomain

mydestination = $myhostname,
	$mydomain,
	localhost.$myhostname,
	localhost.$mydomain,
	localhost
mynetworks = 127.0.0.0/8
inet_interfaces = all
append_dot_mydomain = no
biff = no

# Postfix performance settings
default_destination_concurrency_limit = 20
local_destination_concurrency_limit = 2

# SMTPD Settings
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_mynetworks,
	permit_sasl_authenticated,
	reject_unauth_destination,
	reject_unauth_pipelining,
	reject_non_fqdn_recipient
smtpd_sender_restrictions = permit_mynetworks,
	permit_sasl_authenticated, 
	reject_unknown_hostname, 
	reject_unknown_recipient_domain, 
	reject_unknown_sender_domain
smtpd_client_restrictions = permit_mynetworks,
	permit_sasl_authenticated,
	reject_unknown_client
# Maximum size of Message in bytes (50MB)
message_size_limit = 52428800

home_mailbox = mails/

virtual_alias_domains = $mydomain
virtual_alias_maps = hash:/etc/postfix/virtual_domains
virtual_mailbox_limit = 10240000

## SASL Auth Settings
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes

# Local delivery settings
local_transport = local
alias_database = hash:/etc/aliases
alias_maps = $alias_database

# Default Mailbox size, is set to 0 which means unlimited!
mailbox_size_limit = 0
virtual_mailbox_limit = 0

smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth

debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5

/etc/postfix/virtual_domains:

xxx@domain.tpl xxx

...

Sieht jmd Evtl den Fehler =(
Danke

Mfg