[Postfixbuch-users] eigen E-Mails wegen rejected

[debian at net-service-24.de]

Hallo,

wir haben eine kleines Problem.
Wir relayen unsere Mails aus dem Büro (Outlook-Clients) über einen
internen Mail-Server (Jana-Server), der die Mails an den externen Postfix
(Debian etch) relayed.
Der interne Mailserver hat natürlich keinen öffentlich auflösbaren FQDN.
Vermute mal, daß deshalb die Mails rejected werden.

E-Mails übers Webmail (SquirrelMail) gehen problemlos.

Muss ich unseren eignen interen Mail-Server im Postfix whitelisten?

Dies steht in unserer main.cf drin
/etc/post/main.cf
# SMTP AUTHENTIFICATION # SASL AUTHENTIFICATION
smtpd_recipient_restrictions = permit_mynetworks
        permit_sasl_authenticated
        reject_unauth_destination
        reject_unauth_pipelining


Kann mir jemand einen Tip geben?
Danke Gruss Roland

Poste hier mal die original Reject-Nachricht:

A message from <roland.schmid at messegrafik-schreiber.de> to:
-> debian at net-service-24.de

was considered unsolicited bulk e-mail (UBE).

Our internal reference code for your message is 08206-03/rrEpKSOL+QIg

The message carried your return address, so it was either a genuine mail
from you, or a sender address was faked and your e-mail address abused by
third party, in which case we apologize for undesired notification.

We do try to minimize backscatter for more prominent cases of UBE and for
infected mail, but for less obvious cases of UBE some balance between
losing genuine mail and sending undesired backscatter is sought, and there
can be some collateral damage on both sides.

First upstream SMTP client IP address: [84.176.117.140]
  p54B0758C.dip.t-dialin.net
According to a 'Received:' trace, the message originated at:
[84.176.117.140],
  dell-server.schreiber.me (p54B0758C.dip.t-dialin.net [84.176.117.140])

Return-Path: <roland.schmid at messegrafik-schreiber.de>
Message-ID: <20070524081028.BC4BABC54 at linux2.messefrankfurt-explorer.de>

Delivery of the email was stopped!