Email problem

[kurdak]

Hello,
I have one problem witch email.
When i send emails ftom poczta.wp.pl ( this is a good host in Poland ) to my ispcp serwer i recive that:

Quote:Witaj. Ta wiadomosc zostala wygenerowana przez system pocztowy
Wirtualnej Polski.

Dostarczenie Twojej wiadomosci okazalo sie niewykonalne, nasz
serwer pocztowy nie bedzie staral sie wyslac jej ponownie.
Dokladna przyczyna niedoreczenia listu znajduje sie ponizej.
===
Hi. This message was created automatically by mail system
at Wirtualna Polska.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<admin@kurdak.pl>:
89.75.102.48 does not like recipient.
Remote host said: 554 5.7.1 <admin@kurdak.dyndns.org>: Relay access denied
Giving up on 89.75.102.48.

--- Ponizej znajduje sie kopia listu / Below this line is a copy of the message.

Return-Path: <michal_kurkiewicz@wp.pl>
Received: (wp-smtpd smtp.wp.pl 25892 invoked from network); 14 Jun 2009 00:13:03 +0200
Received: from chello089075102048.chello.pl (HELO [192.168.1.3]) (michal_kurkiewicz@[89.75.102.48])
(envelope-sender <michal_kurkiewicz@wp.pl>)
by smtp.wp.pl (WP-SMTPD) with SMTP
for <admin@kurdak.pl>; 14 Jun 2009 00:13:03 +0200
Message-ID: <4A342473.20107@wp.pl>
Date: Sun, 14 Jun 2009 00:13:07 +0200
From: =?ISO-8859-2?Q?Micha=B3_Kurkiewicz?= <michal_kurkiewicz@wp.pl>
User-Agent: Thunderbird 2.0.0.21 (Windows/20090302)
MIME-Version: 1.0
To: admin@kurdak.pl
Subject: TESCIOR
Content-Type: text/plain; charset=ISO-8859-2; format=flowed
Content-Transfer-Encoding: 7bit
X-WP-AV: skaner antywirusowy poczty Wirtualnej Polski S. A.
X-WP-SPAM: NO 0000000 [0VIX]

002

What is wrong, when i send emails from gmail to my serwer all is ok, please help me.

Sorry for my poor english.