email account bombarded with SPAM error bounces - what to do?
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From: Robert Schetterer on 9 Jul 2010 07:27 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 > spamUser(a)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 <spamUser(a)domain.com>: > Recipient address rejected: Access denied; from=<> > to=<spamUser(a)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 <spamUser(a)domain.com>: Recipient > address rejected: Access denied; from=<> to=<spamUser(a)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 > <spamUser(a)domain.com>: Recipient address rejected: Access denied; > from=<> to=<spamUser(a)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 <spamUser(a)domain.com>: > Recipient address rejected: Access denied; from=<> > to=<spamUser(a)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 > <spamUser(a)domain.com>: Recipient address rejected: Access denied; > from=<> to=<spamUser(a)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 > <spamUser(a)domain.com>: Recipient address rejected: Access denied; > from=<> to=<spamUser(a)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 <spamUser(a)domain.com>: > Recipient address rejected: Access denied; from=<> > to=<spamUser(a)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 <spamUser(a)domain.com>: > Recipient address rejected: Access denied; from=<> > to=<spamUser(a)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 <spamUser(a)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
From: Robert Schetterer on 9 Jul 2010 07:29 Am 09.07.2010 13:00, schrieb Kammen van, Marco, Springer SBM NL: >> From: owner-postfix-users(a)postfix.org > [mailto:owner-postfix-users(a)postfix.org] On Behalf Of Administrator > Beckspaced.com >> Sent: Friday, July 09, 2010 12:52 PM >> To: Robert Schetterer >> Cc: postfix-users(a)postfix.org >> Subject: Re: email account bombarded with SPAM error bounces - what to > do? >> > > 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 > > Hi Robert, > > Not sure if its related to your issue. > But there is a big spam/virus attack going on, where messages look like > NDR's but they aren't. > Various big anti spam vendors are having serious issues stopping this. > > Marco van Kammen > Springer Science+Business Media > System Manager & Postmaster > van Godewijckstraat 30 | 3311 GX > Office Number: 05E21 > Dordrecht > The Netherlands > www.springer.com not my issue i dont see rising backscatter recent but i have always high rates -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
From: "Administrator Beckspaced.com" on 9 Jul 2010 07:35 On 7/9/2010 13:27, Robert Schetterer wrote: > 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 >> spamUser(a)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<spamUser(a)domain.com>: >> Recipient address rejected: Access denied; from=<> >> to=<spamUser(a)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<spamUser(a)domain.com>: Recipient >> address rejected: Access denied; from=<> to=<spamUser(a)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 >> <spamUser(a)domain.com>: Recipient address rejected: Access denied; >> from=<> to=<spamUser(a)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<spamUser(a)domain.com>: >> Recipient address rejected: Access denied; from=<> >> to=<spamUser(a)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 >> <spamUser(a)domain.com>: Recipient address rejected: Access denied; >> from=<> to=<spamUser(a)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 >> <spamUser(a)domain.com>: Recipient address rejected: Access denied; >> from=<> to=<spamUser(a)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<spamUser(a)domain.com>: >> Recipient address rejected: Access denied; from=<> >> to=<spamUser(a)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<spamUser(a)domain.com>: >> Recipient address rejected: Access denied; from=<> >> to=<spamUser(a)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<spamUser(a)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 > > no ... they don't always have equal message bodies ... it's not always the same host ... it's thousands of different hosts and IP addresses .. but of course some message body could be the same ... e.g. i'm sorry to inform you that your message could not get delivered ... bla .. bla ... bla ... still not sure how to fix this ... any more ideas? best regards becki -- Beckspaced.com - WebDesign, Hosting& Solutions CEO Becki Beckmann Marienplatz 9 97353 Wiesentheid Germany Phone: 09383-425 P.O. Box 15 Thongsala 84280 Koh Phangan Suratthani / Thailand Phone: 077-377 733 Mobile: 087-2828826 ---------------------------------------------- Optimism is only a lack of information! ---------------------------------------------- WebDesign& Hosting - http://beckspaced.com - Are You Beckspaced? Phangan Independent News - http://kohphangannews.org - The Awful Truth!
From: "Kammen van, Marco, Springer SBM NL" on 9 Jul 2010 07:45 >>-----Original Message----- >>From: owner-postfix-users(a)postfix.org [mailto:owner-postfix-users(a)postfix.org] On Behalf Of wolfgang >>Sent: Friday, July 09, 2010 1:11 PM >>To: postfix-users(a)postfix.org >>Subject: Re: email account bombarded with SPAM error bounces - what to do? >>In an older episode (Friday, 9. July 2010), Kammen van, Marco, Springer >>SBM NL wrote: > But there is a big spam/virus attack going on, where messages look > like NDR's but they aren't. > Various big anti spam vendors are having serious issues stopping > this. >Could you provide a URL where more details are available? >Regards, >wolfgang Hi Wolfgang, It's a restricted site for customers only but I can give you this: July 05, 2010 @ 02:30 am PDT - We have received reports of new variants of Delivery Notification messages with HTML files that redirects to malware sites bypassing our filters. We are currently investigating the issue with Antivirus vendors and will post an update as soon as information becomes available. July 03, 2010 @ 11:10 am PDT - We have released an update to resolve this issue. The info of the update can be found in the Filter Status Dashboard. We continue monitor the situation and release necessary filter updates. July 03, 2010 @ 09:40 am PDT - We have received reports of new variants of Delivery Notification messages with an HTML file bypassing our filters. We are currently investigating the issue with Antivirus vendors and will post an update as soon as information becomes available. July 02, 2010 @ 08:31 pm PDT - Updated anti virus signatures are now detecting the JS/Agent.ME variant. This has effectively resolved the issue. We apologize for the inconvenience and thank you for your patience and continued support. July 02, 2010 @ 07:00pm PDT - We have received reports of Delivery Notification messages with an HTML file bypassing our filters. We are currently investigating the issue and will post an update as soon as information becomes available. And it seems as of today a new variant is out with a new subject and new garbage in the body... Gotta love those spam people!
From: Robert Schetterer on 9 Jul 2010 07:55 Am 09.07.2010 13:35, schrieb Administrator Beckspaced.com: > > > On 7/9/2010 13:27, Robert Schetterer wrote: >> 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 >>> spamUser(a)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<spamUser(a)domain.com>: >>> Recipient address rejected: Access denied; from=<> >>> to=<spamUser(a)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<spamUser(a)domain.com>: Recipient >>> address rejected: Access denied; from=<> to=<spamUser(a)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 >>> <spamUser(a)domain.com>: Recipient address rejected: Access denied; >>> from=<> to=<spamUser(a)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<spamUser(a)domain.com>: >>> Recipient address rejected: Access denied; from=<> >>> to=<spamUser(a)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 >>> <spamUser(a)domain.com>: Recipient address rejected: Access denied; >>> from=<> to=<spamUser(a)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 >>> <spamUser(a)domain.com>: Recipient address rejected: Access denied; >>> from=<> to=<spamUser(a)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<spamUser(a)domain.com>: >>> Recipient address rejected: Access denied; from=<> >>> to=<spamUser(a)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<spamUser(a)domain.com>: >>> Recipient address rejected: Access denied; from=<> >>> to=<spamUser(a)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<spamUser(a)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 >>>>> 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 >> >> > no ... they don't always have equal message bodies ... > it's not always the same host ... it's thousands of different hosts and > IP addresses .. > > but of course some message body could be the same ... e.g. > > i'm sorry to inform you that your message could not get delivered ... > bla .. bla ... bla ... > > still not sure how to fix this ... any more ideas? > > best regards > becki > hm, if the bounces are known to sanesecurity antispam you can reject them with clamav milter on income smtp level short fix may block incomming mail from <> to that special recipient ( but thats not for long terms ) with restriction classes, but this will block legal bounces too read http://www.postfix.org/BACKSCATTER_README.html for more options you should use a combi of options the body_check may help quick to reduce please check if you can stop some cons with using rbls etc -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
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