Insert them in ACP ---> USERS ---> BAN USERS ---> Ban one or more email addresses
'*@*.acb.pl', '*@*.byethost7.com', '*@tobaccowizard.com', '*@*.cnazn.info', '*@*.hispharm.info', '*@*boom.ru', '*@*cigarettes.*', '*@*pharmacy.*', '*@.com', '*@000buy.com', '*@0alice.info', '*@0virginia.info', '*@1077-assistenza-tecnica-milano.subit05.info', '*@10minutemail.com', '*@10pharm.com', '*@656-crdit.info', '*@aberdeenwashingtonways.com', '*@abilityonline.info', '*@about-britney-spears.info', '*@abovegroundpooldeckissues.com', '*@abovegroundpoolfiltershoppers.com', '*@acb.pl', '*@adidas-in-da-style.info', '*@adultgallerywebcams.info', '*@adultlisting.info', '*@advertfast.com', '*@affiliatehbizclub.com', '*@afgcb.pl', '*@agolubi.org', '*@ahrump.com', '*@aisdsports.info', '*@ajiex.info', '*@albendazole.org', '*@alcohol-free-journal.info', '*@alertonline.info', '*@alexandria.cc', '*@algerie.cc', '*@aliance-comm.info', '*@all-software.info', '*@allionicbreeze.info', '*@allmedicines.t35.com', '*@allwebdrugs.info', '*@alphaspace.org', '*@alternative-email-service.info', '*@alternative-it.info', '*@amateurswebcams.info', '*@americaloan.info', '*@amnevsepoh.info', '*@aolo.com', '*@ashsite.com', '*@atlantmail.com', '*@auto-rus.com', '*@azn.info', '*@babesspot.com', '*@baklanovtut.com', '*@bangerads.com', '*@barcoding-info.info', '*@basserer.info', '*@baycip.org', '*@be-adapted.info', '*@begato.info', '*@bekiso.info', '*@berahe.info', '*@best-finance.biz', '*@bestash.com', '*@bestautosearch.org', '*@bestboyfilms.org', '*@bestemailcontact.org', '*@bestfreemall.info', '*@bestguidedes.info', '*@besttradelink.info', '*@bet-bet.org', '*@bigfreemail.info', '*@bigmir.net', '*@bigvideosonline.com', '*@bitch2hole.info', '*@biz.by', '*@bk.ru', '*@blida.info', '*@blogopt.com', '*@bluebottle.com', '*@bmains.info', '*@bonbon.net', '*@boot.info', '*@boxtray.com', '*@brainyonline.info', '*@britneyspearsempire.com', '*@bubblesonline.info', '*@bumpymail.com', '*@burnacouplemore.com', '*@buy-cheap-cigarette.info', '*@buy-discount-cigarettes.info', '*@buy-replica-watches.com', '*@buyamoxicillin.org', '*@bxzo.com', '*@byethost7.com', '*@camefromblue.info', '*@canadianmedsdore.info', '*@caors.com', '*@care.com', '*@carrehab.org', '*@cashette.com', '*@cat-.info', '*@cat-22.info', '*@center-mail.de', '*@centermail.at', '*@centermail.ch', '*@centermail.com', '*@centermail.info', '*@centermail.net', '*@cheap available.info', '*@cheappill.info', '*@christmas-orgasms.info', '*@civilsrude.com', '*@clauser.info', '*@cnazn.info', '*@comet-pomet.info', '*@coolquality.info', '*@cresthomeloan.info', '*@crus.info', '*@cura-ut-valeas.info', '*@cute-boys.org', '*@cute-boys.orga.cc', '*@damost.info', '*@darkexpress.com', '*@datingservices.com', '*@dbacksmc.org', '*@dearhomeloan.info', '*@defender-mms.info', '*@deo-vindice.info', '*@deu10.byethost7.com', '*@deus-vult.info', '*@dfgr.info', '*@dfpijfpwiejf.org', '*@dic.blogopt.com', '*@diem-perdidi.info', '*@dildo-pleasure.info', '*@discardmail.com', '*@discardmail.de', '*@dkblog.org', '*@docpaulanderson.com', '*@dodgeit.com', '*@doh.com', '*@doh75.com', '*@domain*.com', '*@domain123.com', '*@domain168.com', '*@domain182.com', '*@domain237.com', '*@domain381.com', '*@domain852.com', '*@dontsendmespam.de', '*@dotfreeemail.org', '*@dqoj.com', '*@dredge-armature-loader.com', '*@drugsmarket.info', '*@dumpmail.de', '*@eaeewaqq.com', '*@ebony-18.com', '*@edel-star.biz', '*@email-me-letter.info', '*@emaildienst.de', '*@emailias.com', '*@emailto.de', '*@eosws.org', '*@eroti.info', '*@espmbua.com', '*@euro-investment.biz', '*@expertmovie.com', '*@ezigaretten.*', '*@fakeinformation.com', '*@fateback.com', '*@fatty.boom.ru', '*@fdaeg.ue', '*@fdapills.info', '*@fdjamail.com', '*@fdlkgfdss.com', '*@fdlojhgpwirhr.info', '*@fexk.com', '*@ffbizme.us', '*@fgjpejgpejqerg.info', '*@fhwrijhwreh.org', '*@filki.com', '*@filmania.org', '*@filmssdvd.com', '*@filmus.info', '*@fin-fin.biz', '*@finance-on-line.biz', '*@fjghjfgd.com', '*@fldojhwprhwp.info', '*@flghewegwopegh.org', '*@flush.info', '*@folprwnikomy.com', '*@formails.com', '*@fortnox.info', '*@forumru.com', '*@foryou.com', '*@foryou74.com', '*@foteret.info', '*@free-alta.info', '*@free-mail-service.info', '*@free.familybrutal.com', '*@freebestworld.com', '*@freeemailnow.info', '*@freefreemail.info', '*@freemail.besoft.org', '*@freemaildirect.com', '*@freemailservice.info', '*@freemedsite.org', '*@freemoviegroup.info', '*@freepochta.info', '*@freeservicemail.info', '*@freestuffo.com', '*@fromru.com', '*@front.org', '*@fuckshemale.net', '*@fwwv.com', '*@gala.net', '*@gamebox.net', '*@gawab.com', '*@genericpharmacydrug.com', '*@getfreeplus.com', '*@gettopdrug.info', '*@gewhiz.com', '*@gewhiz1.com', '*@gh20hg082h4g0.org', '*@ghazaei.com', '*@ghosttexter.de', '*@girlsfreewild.info', '*@girlsgoingmad.info', '*@girlsgonewildside.info', '*@gishpuppy.com', '*@giza.cc', '*@gj432jg-rrg.org', '*@globalsources.com', '*@gmail.ru', '*@go-japan.info', '*@goa-info.org', '*@gogophoto.com', '*@gold-profits.info', '*@good-realty.msk.su', '*@greatemailaddress.org', '*@greatmedsdiscount.info', '*@greatmoneynow.org', '*@greensloth.com', '*@grkq.com', '*@gvaq.com', '*@gxle.com', '*@healthrehab.org', '*@hiretin.info', '*@hispharm.info', '*@hnya.org', '*@hodoba.com', '*@holmih.com', '*@homeloancourse.info', '*@hot.ee', '*@hotpop.com', '*@housrehab.org', '*@hyper-info.com', '*@i.ua', '*@i8sex.info', '*@ikeyo.org', '*@iljy.com', '*@iloveandrus.com', '*@inbox.com', '*@inbox.lv', '*@inbox.ru', '*@incest-wonders.info', '*@indigo-mail.info', '*@infreeemail.org', '*@inmails.com', '*@instant-calling-card.com', '*@insurance.awardspace.us', '*@insurance.homeloancourse.info', '*@intop.com', '*@ipharmex.info', '*@itreal.info', '*@itua.info', '*@iyxv.info', '*@jetable.com', '*@jetable.net', '*@jetable.org', '*@jg-rjgrep.info', '*@jogox.org', '*@joresort.info', '*@justopt.info', '*@jvlj.com', '*@jvlo.com', '*@jvvl.com', '*@kasmail.com', '*@kcxu.com', '*@kefir. buy.com', '*@kenwrs.com', '*@kerasifo.info', '*@kidaf.ua', '*@kisenfad.com', '*@klassmaster.com', '*@kmqe.com', '*@kopcap.info', '*@kosheen-fans.info', '*@lamamiata.info', '*@learnmoreonline.net', '*@lgvb.com', '*@link mail.net', '*@lipitocanadianmeds.info', '*@list.ru', '*@lnqk.com', '*@lopigax.com', '*@loyallake.com', '*@lugarus.com', '*@luina.com', '*@lv.com', '*@m-s-n.net', '*@madtube.info', '*@mail.bg', '*@mail.com', '*@mail.ru', '*@mail.saratov.com', '*@mail15.com', '*@mail333.com', '*@mailblocks.com', '*@maileater.com', '*@mailexpire.com', '*@mailinator.com', '*@mailmoat.com', '*@mailnull.com', '*@mailshell.com', '*@mailsome.de', '*@mailzilla.com', '*@maixteka.info', '*@manus-manum-lavat.info', '*@marketingops.com', '*@mascara.ws', '*@master-ok.com', '*@master-se.com', '*@mbsesso.net', '*@mbsexo.net', '*@medafo.info', '*@meds10site.info', '*@mega-mail.info', '*@megasitedirect.org', '*@menja.net', '*@messagebeamer.de', '*@mike18-boy.ifrance.com', '*@milbrado.com', '*@minelab.ru', '*@mirenowredwd.com', '*@mixer.besoft.org', '*@mogesti.info', '*@molodec.info', '*@moo.com', '*@mozillafans.org', '*@mrs-florida-america.com', '*@msn.com', '*@mtmlcore.info', '*@mtzi.com', '*@my-aldebaran.info', '*@my-online-learning.info', '*@my-yep.com', '*@myeasyseek.info', '*@myloginmail.info', '*@mylove-mail.com', '*@mymail-in.net', '*@mynet.com', '*@mytrashmail.com', '*@myway.com', '*@nakedcamerondiaz.info', '*@ne-quid-nimis.info', '*@nencyalba.info', '*@neo-explode.org', '*@nerdshack.com', '*@nervmich.net', '*@nervtmich.net', '*@net-search.org', '*@net.gr', '*@netmails.net', '*@netzidiot.de', '*@ngyz.com', '*@nicolo-martin.de', '*@niggazzz.org', '*@nil-admirari.info', '*@ninoros.info', '*@nisiet.com', '*@nm.ru', '*@non-olet.info', '*@norivo.info', '*@nosce-te-ipsum.info', '*@nubiles-18.com', '*@nurfuerspam.de', '*@nysplace.com', '*@o.pl', '*@ofdjgpwrigp.info', '*@ofwehp0hg20hg.org', '*@onlinebestplenty.org', '*@onlinehoster.com', '*@onlymail2007.com', '*@oran.cc', '*@orderbuyonline.com', '*@ordiv.com', '*@orgnews.org', '*@orkq.com', '*@ovxe.com', '*@paraplandv.info', '*@paris-hilton-sucking.info', '*@pavian.org', '*@pbqn.com', '*@peugeot-club.org', '*@phentermine*', '*@phentermine1.info', '*@phentermineorder.boom.ru', '*@phpbbspam.org', '*@pillus.info', '*@pingmyhobbit.info', '*@pisem.net', '*@piwpihrewipreh.org', '*@pleasantphoto.com', '*@please-email-me.info', '*@pochta.ru', '*@pochta.ws', '*@pohpah.prophp.org', '*@poker.boom.ru', '*@pookmail.com', '*@pornobilder-mal-gratis.com', '*@pornoroxx.net', '*@portsaid.cc', '*@pptp-service.info', '*@privacy.net', '*@prjhgerjhperjh.info', '*@punkass.com', '*@putoncondoms.com', '*@qgfh.com', '*@qkmv.com', '*@qlfg.com', '*@qpyu.com', '*@quality-only.info', '*@qualityandsweet.info', '*@rambler.ru', '*@readnowgetpaid.com', '*@realresult.us', '*@realty.msk.su', '*@refinancce.biz', '*@rotover.info', '*@rpfhwrihwiruhw.org', '*@rpfhwrihwiruhw432.org', '*@rudedirect.com', '*@rugh92ughhgs.info', '*@runbox.com', '*@ruxv.com', '*@rxpw.com', '*@sahir.info', '*@salasdepoker.net', '*@samsonbllinded.com', '*@sanaa.cc', '*@sanna.cc', '*@sat.info', '*@savegame.info', '*@sdfs.com', '*@search-for-web.info', '*@searchroad.net', '*@security-hosting.net', '*@semoter.info', '*@servicefreemail.info', '*@sex-porn-video.pwkm.info', '*@sexisbliss.com', '*@seznam.cz', '*@shortmail.net', '*@shtut.info', '*@sibmail.com', '*@sims.com', '*@skorpmax.info', '*@sland.info', '*@smsmeetstv.com', '*@sneakemail.com', '*@sneakermail.com', '*@sofort-mail.de', '*@sogetthis.com', '*@sohwoh.com', '*@space.kz', '*@spam.la', '*@spambob.com', '*@spambob.net', '*@spambob.org', '*@spamday.com', '*@spamex.com', '*@spamgourmet.com', '*@spamhole.com', '*@spaminator.de', '*@spammotel.com', '*@spamoff.de', '*@spamtrail.com', '*@spivare.com', '*@sriaus.com', '*@statistics-fund.com', '*@strannik.name', '*@supermortgagerate.info', '*@svn-repository.info', '*@swrwiprjhwirjhp.org', '*@symbian-petting.info', '*@takoe.net', '*@tandemseries.info', '*@telegraf.by', '*@temet-nosce.info', '*@tempinbox.com', '*@temporarily.de', '*@temporaryinbox.com', '*@tempus-fugit.info', '*@test-my-email.info', '*@thatsthegame.com', '*@thebestweb.info', '*@thecannabishunter.com', '*@thecigarettes.info', '*@thedrugmarket.com', '*@theemailaddresses.org', '*@theemailcontact.org', '*@thefunnyvids.org', '*@tlen.pl', '*@toghraee.com', '*@topadult.info', '*@topsearchnet.info', '*@topvideogalerz.info', '*@trade-soft.biz', '*@tradedoubling.co.uk', '*@traffsale.com', '*@tramadol-inka.info', '*@tramadolfromhell.com', '*@trash-mail.de', '*@trashmail.net', '*@trax.yourpiu.info', '*@tut.by', '*@twinmail.de', '*@ua.fm', '*@uaqw.com', '*@uaxc.com', '*@ubkq.com', '*@uefa-germany.org', '*@uixj.com', '*@ujkp.com', '*@ukr.net', '*@ultimate-svn.info', '*@ultram.org', '*@underwhatwhat.info', '*@url.com', '*@urlor.com', '*@usadaytrade.biz', '*@usermail.com', '*@uwkd.com', '*@uxwp.com', '*@vcej.com', '*@vhzn.com', '*@virtualrxenc.info', '*@visit-it.info', '*@vjst.com', '*@vjyj.com', '*@vkhe.com', '*@vmxc.com', '*@voltaren.org', '*@vpql.com', '*@vpspt.info', '*@vqfy.com', '*@vrlq.com', '*@vrzi.com', '*@vxaz.com', '*@vztl.com', '*@vzxi.com', '*@walla.com', '*@warhammerwiki.com', '*@wasphawk.ru', '*@weare.com', '*@web-browser.info', '*@wegwerfadresse.de', '*@willhackforfood.biz', '*@winantivirus.info', '*@winrock.org.md', '*@wjvd.com', '*@wprihwpihwrhwpir.org', '*@wuqs.com', '*@wuzup.net', '*@www.freewebs.com', '*@www.hot.ee', '*@wwwfreemail.info', '*@xbox-gammers.info', '*@xdta.com', '*@xents.com', '*@xgix.com', '*@xkje.com', '*@xm.biz', '*@xoxma.net', '*@xqce.com', '*@xtopsearch.info', '*@xwpi.com', '*@yandex.ru', '*@ybbs.info', '*@yfzv.com', '*@yoblog.info', '*@youpharm.info', '*@youraces.info', '*@youremailsoftware.org', '*@yourfreehost.info', '*@yqli.com', '*@yufz.com', '*@yvpb.com', '*@yvyl.com', '*@yxclub.info', '*@z2sex.info', '*@z3sex.info', '*@zakarpatie.com.ua', '*@zeebede.com', '*@zffk.com', '*@znahov.org', '*@zoemail.com', '*@zpsv.com', '*@zqwe.com', '*@zyll.net', '*alt-email-host.info', '*siyf.info', '3axep@hotpop.com', 'amazing-videos.info', 'analsexpro@vfemail.net', 'asapich@i.ua', 'babycop@neo-explode.org', 'bezdelnikusa@mymail-in.net', 'bmw3s@realresult.us', 'chubchub76@mail.ru', 'cjfkjf@i.ua', 'creamworld@poczta.onet.pl', 'datingfree@ukr.net', 'dengizlo@hotbox.ru', 'dertinov5@gawab.com', 'diamtcom@diamonddatinglist.com', 'dijonreid@hotmail.com', 'door@peugeot-club.org', 'dvtriodin@tut.by', 'eeananejoer03@indigo-mail.info', 'erla1@defender-mms.info', 'fdfggg@i.ua', 'feaz@i.ua', 'fedorikolo@web.de', 'fertassa@mail.ru', 'ffg@bmains.info', 'fgdsfgh@i.ua', 'fgnfgbn@phpbbspam.org', 'funy@email-me-letter.info', 'gaffar.lyahnicki@mail.ru', 'gdfgw@i.ua', 'giovani6@o2.pl', 'giovani6@tlen.pl', 'gono5456v89@mail.ru', 'gudrio@bxzo.com', 'hdqrbuy@hotmail.com', 'hertune@mail.ru', 'heruvixert@mymail-in.net', 'hsag675gj7s@mail.ru', 'kazaryan_nadar@mail.ru', 'kytreno@safebox.ru', 'langelo@i.ua', 'login@gawab.com ', 'michaelxp@insurance.awardspace.us', 'miobica@vpspt.info', 'netga@xwpi.com', 'notsniw2@bigmir.net', 'onlinekasino888@hotpop.com', 'Ootepmarjalem56@alternative-email-service.info', 'ozirbojanr@mail.ru', 'pogonilo@mail.ru', 'radomir_ryashenk@mail.ru', 'riddikjan@mail.ru', 'shevtchuk2007x@ya.ru', 'skuarlytronald@mail.com', 'sorogromm@me.by', 'spoon@alt-email-host.info', 'ssak8@bk.ru', 'ssilkirap17@mail.ru', 'stepanenko.egor@mail.ru', 'Stik@underwhatwhat.info', 'titelwey@mail.ru', 'tolon@bk.ru', 'tolon_72@list.ru', 'tramadolkanote@mail.ru', 'TransMasterBeat@ya.ru', 'tratata321@yahoo.com', 'violet11011@citiz.net', 'voros654f6@mail.ru', 'xazuj@hodoba.com', 'yarzutswa@mail.ru', 'yvxvramk@myloginmail.info', 'zenyt87@yahoo.com',
Code block added by novice programer:
'*invitacion*', '*@*hi5.com', '*@*fa*.endifusion.net', 'concurso@ganaemail.net', '*@*mail*.correoafiliados.es', '*bulletin*', '*@*hispadb.com', '*@*guauu.com', '*@*queblock.org, '*@*emailbase.org', '*sender*', '*FreedomFinance*', '*Zed*', '*@*Hispadb.com', '*envio*', '*mailer*', '*@*geomail.com', '*listas*', '*@*loopingmedia.com*', '*geomail-es-ayuda*', '*geomail-es-alta*', '*moderador de geomail-es*', '*invite*', '*@*metroflog.com', '*who_claimsdept*', '*@*gamaemail.net', '*d*@*kiwari.com', '*bounce*', '*lydiaheistarr*', '@*cabestan.com', 'karmenovoa@hotmail.com', 'karmont@terra.es', 'karmeloetxeita@vitalicio.es', 'kaiser57@acousticdream.com', 'info@crackmanworld.com', 'looney65@acs-services.com', 'patton75@eggington.net', 'yarbrough89@activecert.com', 'jrandolph@cincinnatireds.com', 'Thurman@cincinnatireds.com', '*noresponda*', '*@*informa.terra.es', '*front.terra*', '*@*dinaserver.com', '*clientes*', '*@*eInforma.com', '*elrifle*', '*@*bsfox.com', '*@*bloquo.com'
End of modification. (Code block by novice programmer)
You will prevent spam registrations from the domains banned here