постмастеру начали сыпатся письма по несколько тысяч... примерно 3к писем за 12 часов.. в юниксе не очень шарю.. как можно избавится от того что письма приходят на не существующие имена, в 3 письме вапще говорит о том что обратная зона не правильная хотя с ней всё впорядке.. сервер тихо работал и никого не трогал =) а.. да ещё спама оооочеееннь много стало приходить секретарю вапще около 100 приходит писем спама.. помогите люди добрые, как от этого можно избавится.
Письма примерно вот такого содержания

*1 письмо*

Return-Path: <#@[]>
Delivered-To: postmaster@домен.ru
Received: (qmail 29626 invoked for bounce); 1 Apr 2008 14:09:45 -0000
From: MAILER-DAEMON@домен.ru
To: postmaster@домен.ru
Subject: failure notice
Hi. This is the qmail-send program at домен.ru.
I tried to deliver a bounce message to this address, but the bounce bounced!
<kabmgmt@charter.net>:
216.33.127.20 does not like recipient.
Remote host said: 550 Invalid recipient:
<kabmgmt@charter.net>
Giving up on 216.33.127.20.
--- Below this line is the original bounce.
Return-Path: <>
Received: (qmail 29598 invoked for bounce); 1 Apr 2008 14:09:44 -0000
Date: 1 Apr 2008 14:09:44 -0000
From: MAILER-DAEMON@домен.ru
To: kabmgmt@charter.net
Subject: failure notice
Hi. This is the qmail-send program at домен.ru.
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.
<f@домен.ru>:
Sorry, no mailbox here by that name. (#5.1.1)
-- Below this line is a copy of the message.
Return-Path:
<kabmgmt@charter.net>
Received: (qmail 29204 invoked from network); 1 Apr 2008 14:08:51 -0000
Received: from unknown (HELO 69.88.112.106) (69.88.112.106) by мой_IP with SMTP; 1 Apr 2008 14:08:51 -0000
From: =?koi8-r?B?8MXSxdLXwQ==?= <kabmgmt@charter.net>
To: <f@домен.ru>

*2 письмо*

Return-Path: <#@[]>
Delivered-To: postmaster@домен.ru
Received: (qmail 28957 invoked for bounce); 1 Apr 2008 14:08:06 -0000
From: MAILER-DAEMON@ns.домен
To: postmaster@ns.домен
Subject: failure notice
Hi. This is the qmail-send program at домен.ru.
I tried to deliver a bounce message to this address, but the bounce bounced!
<shih_chi50sonja@hotmail.com>:
65.54.245.72 does not like recipient.
Remote host said: 550 Requested action not taken:
mailbox unavailable
Giving up on 65.54.245.72.
--- Below this line is the original bounce.
Return-Path: <>
Received: (qmail 28954 invoked for bounce); 1 Apr 2008 14:08:04 -0000
From: MAILER-DAEMON@домен.ru
To: shih_chi50sonja@hotmail.com
Subject: failure notice
Hi. This is the qmail-send program at домен.ru.
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.
<5912471356.20040826123004@домен.ru>:
Sorry, no mailbox here by that name. (#5.1.1)--- Below this line is a copy of the message.
Return-Path: <shih_chi50sonja@hotmail.com>
Received: from ppp85-140-62-152.pppoe.mtu-net.ru (85.140.62.152) by мой_IP with SMTP; 1 Apr 2008 14:08:03 -0000
From: =?koi8-r?B?5MXN2NHOIO3V0sHUz9c=?= <shih_chi50sonja@hotmail.com>

*3 письмо*
Return-Path: <#@[]>
Delivered-To: postmaster@домен.ru
Received: (qmail 29973 invoked for bounce); 1 Apr 2008 14:10:36 -0000
From: MAILER-DAEMON@домен.ru
To: postmaster@домен.ru
Subject: failure notice
Hi. This is the qmail-send program at домен.ru.
I tried to deliver a bounce message to this address, but the bounce bounced!
<suesec3617shelly@walla.com>:
Connected to 192.118.82.144 but sender was rejected.
Remote host said: 550 5.7.1 No PTR records
exist for [мой_IP] To get reverse DNS set up for [мой_IP] you need to speak to your Internet provider
--- Below this line is the original bounce.
Return-Path: <>
Received: (qmail 29946 invoked for bounce); 1 Apr 2008 14:10:34 -0000
From: MAILER-DAEMON@домен.ru
To: suesec3617shelly@walla.com
Subject: failure notice
Hi. This is the
qmail-send program at домен.ru.
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.
<nfoj@домен.ru>:
Sorry, no mailbox here by that name. (#5.1.1)
--- Below this line is a copy of the message.
Return-Path: <suesec3617shelly@walla.com>
Received: (qmail 29875 invoked from network); 1 Apr 2008 14:10:27 -0000
Received: from ppp85-140-239-216.pppoe.mtu-net.ru (85.140.239.216) by мой_IP with SMTP;
From: =?koi8-r?B?7cHU18XKIOTVws/X?=
<suesec3617shelly@walla.com>
To: <nfoj@домен.ru>
Subject: =?koi8-r?B?MTAgLSAxMSDB0NLFzNEgMjAwOCDHLg==?=