Am 09.07.2010 12:51, schrieb Administrator Beckspaced.com:
>  hello robert,
> 
> thanks a lot for your quick reply ...
> actually it is not always the same IP or host sending the error bounces ...
> the bounces are sent from hundred of different IP addresses ...
> 
> any more idea?
> 
> thanks for your help & fun
> becki
> 
> 
> below some logs you requested ... change the real email account to
> spamu...@domain.com  ->
> 
> Jul  8 12:20:27 gehirn postfix/smtpd[19857]: NOQUEUE: reject: RCPT from
> crusty.hosts.net.nz[210.48.108.195]: 554 5.7.1 <spamu...@domain.com>:
> Recipient address rejected: Access denied; from=<>
> to=<spamu...@domain.com> proto=SMTP helo=<crusty.hosts.net.nz>
> Jul  8 12:22:08 gehirn postfix/smtpd[19859]: NOQUEUE: reject: RCPT from
> mailx.nlabs.de[92.79.50.220]: 554 5.7.1 <spamu...@domain.com>: Recipient
> address rejected: Access denied; from=<> to=<spamu...@domain.com>
> proto=SMTP helo=<mailx.nlabs.de>
> Jul  8 12:22:48 gehirn postfix/smtpd[19854]: warning: 222.254.188.229:
> address not listed for hostname localhost
> Jul  8 12:23:28 gehirn postfix/smtpd[18358]: NOQUEUE: reject: RCPT from
> port-87-234-220-121.static.qsc.de[87.234.220.121]: 554 5.7.1
> <spamu...@domain.com>: Recipient address rejected: Access denied;
> from=<> to=<spamu...@domain.com> proto=SMTP helo=<mforward>
> Jul  8 12:26:22 gehirn postfix/smtpd[19854]: setting up TLS connection
> from mail.aydin.edu.tr[212.174.169.8]
> Jul  8 12:26:22 gehirn postfix/smtpd[19854]: TLS connection established
> from mail.aydin.edu.tr[212.174.169.8]: TLSv1 with cipher
> DHE-RSA-AES256-SHA (256/256 bits)
> Jul  8 12:26:22 gehirn postfix/smtpd[19854]: NOQUEUE: reject: RCPT from
> mail.aydin.edu.tr[212.174.169.8]: 554 5.7.1 <spamu...@domain.com>:
> Recipient address rejected: Access denied; from=<>
> to=<spamu...@domain.com> proto=ESMTP helo=<Mailsrv.aydin.edu.tr>
> Jul  8 12:27:57 gehirn postfix/smtpd[19850]: NOQUEUE: reject: RCPT from
> svhqgtw02.ethiopianairlines.com[213.55.83.14]: 554 5.7.1
> <spamu...@domain.com>: Recipient address rejected: Access denied;
> from=<> to=<spamu...@domain.com> proto=SMTP
> helo=<svhqgtw02.ethiopianairlines.com>
> Jul  8 12:27:58 gehirn postfix/smtpd[18899]: NOQUEUE: reject: RCPT from
> svhqgtw02.ethiopianairlines.com[213.55.83.14]: 554 5.7.1
> <spamu...@domain.com>: Recipient address rejected: Access denied;
> from=<> to=<spamu...@domain.com> proto=SMTP
> helo=<svhqgtw02.ethiopianairlines.com>
> Jul  8 12:28:27 gehirn postfix/smtpd[18358]: A565C150A7D:
> client=relay02.is.co.za[196.35.6.70]
> Jul  8 12:28:31 gehirn postfix/smtpd[20525]: 78BEC150A7F:
> client=localhost[127.0.0.1]
> Jul  8 12:28:35 gehirn postfix/smtpd[18899]: NOQUEUE: reject: RCPT from
> mx2.lost-oasis.net[80.67.160.52]: 554 5.7.1 <spamu...@domain.com>:
> Recipient address rejected: Access denied; from=<>
> to=<spamu...@domain.com> proto=SMTP helo=<mx2.lost-oasis.net>
> Jul  8 12:29:23 gehirn postfix/smtpd[18899]: NOQUEUE: reject: RCPT from
> defer114.ocn.ad.jp[122.28.15.169]: 554 5.7.1 <spamu...@domain.com>:
> Recipient address rejected: Access denied; from=<>
> to=<spamu...@domain.com> proto=ESMTP helo=<defer114.ocn.ad.jp>
> Jul  8 12:29:49 gehirn postfix/smtpd[19850]: E4B86150AE9:
> client=unknown[184.154.34.69]
> Jul  8 12:29:56 gehirn postfix/smtpd[20525]: 8B7F4150AF6:
> client=localhost[127.0.0.1]
> Jul  8 12:30:43 gehirn postfix/smtpd[19854]: NOQUEUE: reject: RCPT from
> post.vrus.de[85.182.133.62]: 554 5.7.1 <spamu...@domain.com>: Recipient
> address rejected: Access denied; from=<>
> 
> On 7/9/2010 12:42, Robert Schetterer wrote:
>> Am 09.07.2010 12:35, schrieb Administrator Beckspaced.com:
>>>   hello there,
>>>
>>> i'm running a postfix 2.4.6 on a opensuse box.
>>> postfix has amawis-new with spamassasin installed ...
>>>
>>> since a few weeks one of my email accounts gets bombarded with thousands
>>> of SPAM mailer daemon error bounces.
>>> could not deliver message ... bla bla bla ...
>>>
>>> it's getting really annoying as there are thousands of error bounces
>>> coming in every single day.
>>>
>>> looks like that the email address ended up on some SPAM mailing lists
>>> ... adn now the mailbox receives all this error message junk
>>>
>>> so ... what's the best strategy to get rid off this problem?
>>>
>>> already had a quick look ... and the error bounces come in with an empty
>>> <>  from address ...
>>> which seems to be standard for this ... and by default postfix doesn't
>>> block empty from addresses<>
>>>
>>> so what's the best thing to do to get rid of those thousand error email
>>> bounces?
>>>
>>> thing is that the customer urgently needs this email account as it is
>>> signed up at many service providers.
>>>
>>> could i do a header check for this single email account and reject the
>>> empty from address<>  for that email account only?
>>> what are my options? what's the smartest thing to do??
>>>
>>> thanks a lot for your help&  service
>>>
>>> with best regards
>>> becki
>>>
>>   if it always the same host sending backscatter
>> simple block the host by access list and/or firewall
>>
>> lets see some logs, there are many way to deal with backscatter
>>
> 

please dont top post,

do they have  always the same body ?
or equal bodies which might can be matched
with some body_checks

something like
 main.cf
body_checks = pcre:/etc/postfix/body_checks

/sunstarcasino\.net/ REJECT backscatter


-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria

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