dnslists.otl

   1 TODO
   2         check and link (de)listing policy
   3                 NOGO: delisting for money
   4         check and link usage policy
   5         check and link return codes
   6         find newsfeed or mailinglist
   7         give feedback?
   8         implement in exim
   9         implement in SA
  10         implement in rspamd
  11 00_META
  12         https://bugs.launchpad.net/ubuntu/+source/amispammer/+bug/835614
  13         http://www.blalert.com/dnsbls
  14         http://www.dnsbl.info/dnsbl-list.php
  15         http://dnsbl.inps.de/index.cgi?lang=en&site=00002
  16         http://www.sdsc.edu/~jeff/spam/cbc.html
  17         http://moensted.dk/spam/
  18         https://whatismyipaddress.com/blacklist-check
  19         https://multirbl.valli.org/
  20         https://glockapps.com/blacklist/
  21         https://docs.hetrixtools.com/monitored-blacklists/
  22         https://www.blacklistmaster.com/
  23         https://knowledge.validity.com/hc/en-us/sections/204468388-Blocklists
  24         https://github.com/zbetcheckin/DNSBLs
  25         https://en.wikipedia.org/wiki/Comparison_of_DNS_blacklists
  26         https://www.impressionwise.com/kb/threats/rbl-advisories.html
  27 00_ELANG
  28         http://dnsbl.aspnet.hu/
  29                 hungarian?
  30         http://spam-rbl.fr/
  31                 french
  32         https://mav.com.br/
  33                 maybe? they have antispam but it’s all portugese? or spanish? no idea
  34 00_DEAD
  35         http://openrbl.org/
  36                 as seems dead
  37                         404s
  38                         wiki is down
  39         http://mailhosts.org/
  40                 dead
  41                         https://www.blalert.com/dnsbl/shortlist.mailhosts.org
  42         blitzed.org
  43                 dead since 2006
  44                         https://www.dnsbl.com/2007/02/status-of-opmblitzedorg-dead.html
  45                                 referenced ML post is 404
  46         blackholes.five-ten-sg.com
  47                 Offline as of 1/1/2013
  48                         https://whatismyipaddress.com/five-ten-sg
  49         dynip.rothen.com
  50                 On 9/29/2020 the ROTHEN blacklist appears to have started to list the entire internet
  51                         https://www.dnsbl.info/dnsbl-details.php?dnsbl=dynip.rothen.com
  52         fl.chickenboner.biz
  53                 dead since 2011
  54                         https://community.spiceworks.com/topic/329762-blacklist-removal
  55                         https://bugs.launchpad.net/ubuntu/+source/amispammer/+bug/835614
  56                 website contains spam/crap
  57         http://cart00ney.surriel.com/
  58                 cart00ney.org is dead
  59         http://dsbl.org/
  60                 points to surriel.com
  61         http://csma.biz/
  62                 domain is for sale
  63                 dead since 2013
  64                         https://www.dnsbl.com/2013/02/status-of-blcsmabiz-dead.html
  65         http://dnsbl.net.au/
  66                 website contains info about living in australia? called "AusBlog"
  67                 http://www.dnsbl.com/2009/04/status-of-dnsblnetau-dead.html
  68         http://moensted.dk/spam/
  69                 dead since 2010
  70                 https://moensted.dk/spam/
  71         http://rbl.mw-internet.net/
  72                 domain was parked
  73                 2023: it is an asian(?) gambling(?) website
  74         http://www.blackholes.us/
  75                 dead since 2009
  76                         https://www.dnsbl.com/2009/10/status-of-blackholesus-dead.html
  77         http://www.deadbeef.com/
  78                 dead, no info
  79         spamsources.dnsbl.info
  80                 dead since 2011 or so
  81                         http://www.dnsbl.info/spamsources-dnsbl-defunct.php
  82         http://www.gweep.ca/
  83                 domain dead, no other info
  84         http://www.njabl.org/
  85                 dead since 2013
  86                         https://en.wikipedia.org/wiki/Not_Just_Another_Bogus_List
  87         http://wytnij.to/
  88                 website parked, no other info
  89         https://www.transip.nl/
  90                 dead since 2013
  91                         https://www.blalert.com/dnsbl/proxy.block.transip.nl
  92                         https://www.blalert.com/dnsbl/residential.block.transip.nl
  93         pss.spambusters.org.ar
  94                 NXDOMAIN
  95         rbl.snark.net
  96                 NXDOMAIN
  97                 https://snark.net/ gives access denied
  98         whois.rfc-ignorant.org
  99                 NXDOMAIN
 100                 rfc-ignorant.org registered but no A/AAAA record
 101                 dead since 2012
 102                         http://www.h-online.com/security/news/item/RFC-Ignorant-org-blacklist-closes-down-1724814.html
 103                         https://www.dnsbl.com/2012/09/status-of-rfc-ignorantorg-shutting-down.html
 104         will-spam-for-food.eu.org
 105                 unmaintained
 106                 dead
 107                         https://rfc1149.net/blog/2012/01/22/who-did-resurrect-will-spam-for-food/
 108         http://proxybl.org/
 109                 dead, seemingly written on http://proxybl.org/blog but that’s also dead
 110                 https://linuxreviews.org/Mail_Spam_Blacklists
 111                 https://community.sophos.com/utm-firewall/f/web-server-security/50273/dnsbl-proxybl-org-offline
 112         dev.null.dk
 113                 timeout, also on the parent null.dk
 114                 effectively dead
 115         dnsbl.mags.net
 116                 seems dead, no info to be found
 117                 domain does not respond
 118         http://msrbl.blogspot.ch/
 119                 http://msrbl.blogspot.com/ says "no updates" since 2010 but supposed to be reactivated
 120                 effectively dead
 121         http://www.olsentech.net/
 122                 strange content on web
 123                 effectively dead
 124         rbl.orbitrbl.com
 125                 http://www.orbitrbl.com/
 126                 timeout
 127         rbl.polarcomm.net
 128                 NXDOMAIN
 129                 registered but no A/AAAA record
 130         cidr.bl.mcafee.com
 131                 https://kc.mcafee.com/corporate/index?page=content&id=KB53783
 132                         404
 133                 no info to be found
 134                 dead?
 135         http://anti-spam.org.cn/?locale=en_US
 136                 unreachable DNS
 137         rbl.talkactive.net
 138                 seems dead
 139                 talkactive.net redirects twice to some hosting company
 140                 last listings in 2017
 141                         https://multirbl.valli.org/detail/rbl.talkactive.net.html
 142                         https://www.blacklistmaster.com/blacklists?view=details&blacklist=rbl.talkactive.net
 143         dnsbl.ipocalypse.net
 144                 no policies published
 145                 dead
 146                         was a private list of an irc network
 147                         network was renamed idlechat.net in 2014
 148                         became a discord chat in 2022(?)
 149         http://blakjak.net/RBL
 150                 external access disabled
 151                 2023: seems dead, website is a weird error
 152                 https://www.blalert.com/dnsbl/rbl.blakjak.net
 153                         This is a private list that we do not monitor as the maintainer has explicity announced that the list is for his personal use
 154         http://cyberlogic.net/
 155                 french (canada)
 156                 https://www.dnsbl.info/dnsbl-details.php?dnsbl=dnsbl.cyberlogic.net
 157                         On or about 5/21/2018 the cyberlogic DNSBL ceased functioning properly.
 158                 https://www.dnsbl.com/2018/05/
 159                         As reported on the mailop mailing list on Friday May 25, 2018, the blocking list at dnsbl.cyberlogic.net now contains a "wildcard" DNS entry, effectively listing the entire internet
 160         http://www.rbl.jp/allrbl-e.html
 161                 website asks for login or just errors
 162         http://www.spamhauswhitelist.com/en/
 163                 looks like a parked domain with ads
 164         http://stopspam.org/rblcheck/index.php
 165                 aka dul.pacifier.net
 166                 http://www.stopspam.org/rbl-info/
 167                         stopped in 2013
 168         http://countries.nerd.dk/
 169                 unable to connect, also for nerd.dk
 170         http://dul.ru/dul.en.html
 171                 DEAD for sale
 172         http://dns.measurement-factory.com/surveys/openresolvers.html
 173                 dead
 174                         »The following text describes past open DNS resolver surveys and an associated DNS lookup service that has been long shut down«
 175         http://www.sectoor.de/tor.php
 176                 timeouts
 177         http://anticaptcha.net/
 178                 for sale
 179         http://blacklist.lashback.com/
 180                 query zone: ubl.unsubscore.com
 181                 provider’s website https://lashback.com/ seems alive and active (news entries from 2023) but does not link to the blacklist
 182                 rsync URLs seem dead, so does the download url
 183         http://blacklist.woody.ch/
 184                 no entries in the displayed "top 100"
 185                 may have been absorbed into the swinog blacklists, see antispam.imp.ch
 186         http://cbl.abuseat.org/
 187                 https://www.abuseat.org/
 188                         changes to the CBL that occured in January 2021. In short, the CBL infrastructure was replaced by the Spamhaus XBL structure
 189         http://dnsbl.burnt-tech.com/
 190                 domain is for sale
 191         http://rbl.dns-servicios.com/rbl.php
 192                 website can not be found
 193         http://spamcannibal.org/
 194                 dead, as of at least 2018
 195         http://st.technovision.dk/
 196                 https://docs.hetrixtools.com/st-technovision-dk-inactive-removed/
 197                         [December 8, 2021] This RBL has stopped responding to DNS queries.
 198         http://spamstinks.com/
 199                 cert is for generic hostname
 200                 website shows some login form
 201         http://virbl.bit.nl/
 202                 https://www.rollernet.us/2017/01/shutdown-of-virbl-dnsbl-bit-nl/
 203                         January 23, 2017: »The Virbl-project site has been replaced by this static message to inform those that find their ways here. The Virbl DNSBL-zone was emptied and will be removed all together at a moment further on in the future.«
 204         http://www.blocklist.de/en/index.html
 205                 lots of timeouts as of 2023
 206                 forum link is dead, among others
 207                 seems unmaintained but alive
 208                 latest news is from 2016
 209                 latest blog entry from 2022
 210                         Abusix, a network security company for mail security and abuse report handling, takes over blocklist.de to integrate it within its Abusix platform to further improve its data quality.
 211 00_NEEDS_RECHECK
 212         https://antispam.imp.ch/
 213                 no usage policy
 214                 no return code info
 215                 no good listing policy
 216                 information received from inquiry to provider
 217                         website will be updated
 218                         return codes
 219                                 dnsrbl.swinog.ch and uribl.swinog.ch (holding time increases with hits)
 220                                         127.0.1.8 = default
 221                                         127.0.0.10 => TRAP (Email sent to a spamtrap)
 222                                         127.0.0.11 => REPO (Email reported as Spam by customer)
 223                                 spamrbl.imp.ch (3 days holding time)
 224                                         IPs are listed when trying to send mail to the spamtrap mailserver
 225                                         MD5 hash: attachment sent to the swinog blacklist
 226                                 wormrbl.imp.ch
 227                                         DEAD
 228         http://blacklist.woody.ch/rblcheck.php3
 229                 dead?
 230                 waiting for feedback
 231         http://dnsbl.iip.lu/
 232                 https://docs.hetrixtools.com/lookup-dnsbl-iip-lu-false-positive-removed/
 233                         in 2016: lookup.dnsbl.iip.lu blacklist started issuing false positive responses and upon further investigation looks to be abandoned/dead.
 234                 https://www.blalert.com/dnsbl/lookup.dnsbl.iip.lu
 235                         This blacklist is marked as "shut down" and non-operational as of 2017-12-31.
 236         http://dnsbl.inps.de/
 237                 timeout
 238                 https://www.dnsbl.com/search/label/dnsbl.inps.de
 239                         Today, May 25, 2020, he has announced that it is shutting down, due to concerns around GDPR and personal challenges brought on by the coronavirus pandemic.
 240                 https://docs.hetrixtools.com/dnsbl-inps-de-removed-from-our-system/
 241                         [May 29,2018] IPv4 RBL dnsbl.inps.de has been removed from our system, as they have decided to discontinue the RBL project for the time being.
 242                 https://glockapps.com/blacklist/dnsbl-inps-de/
 243                         Today, May 25, 2020, he has announced that it is shutting down, due to concerns around GDPR and personal challenges brought on by the coronavirus pandemic.
 244                 https://www.dnsbl.info/dnsbl-details.php?dnsbl=dnsbl.inps.de
 245                         This blacklist is offline as of May 1, 2020.
 246                 https://web.archive.org/web/20220428013500/http://www.inps.de/
 247 00_NEEDS_RESEARCH
 248         bl.tiopan.com
 249         blocked.hilli.dk
 250         dialups.visi.com
 251         dnsbl.antispam.or.id
 252         dob.sibl.support-intelligence.net
 253         intruders.docs.uu.se
 254         map.spam-rbl.com
 255         rbl.triumf.ca
 256         all.s5h.net
 257                 http://www.usenix.org.uk/content/rbl.html
 258         torexit.dan.me.uk
 259         http://pedantic.org/
 260                 as of 20140701
 261         rbl.fasthosts.co.uk
 262                 https://help.fasthosts.co.uk/app/answers/detail/a_id/140/kw/rbl
 263                 seems dead?
 264                 https://antispam.fasthosts.co.uk/
 265 00_ALIVE
 266         00_RECONSIDER
 267                 http://barracudacentral.org/rbl
 268                         requires account with extensive information (more than spamhaus e.g.):
 269                                 your name.
 270                                 your company name.
 271                                 your phone number.
 272                                 your address.
 273                                 your city name.
 274                                 your state/province name.
 275                                 your zip/postal code.
 276                                 the name of the alternate contact.
 277                                 the phone number of the alternate contact.
 278                                 the email address of the alternate contact.
 279                         seems well documented
 280         00_E_EVIL
 281                 sbl.nszones.com
 282                         http://www.spamhaus.org/organization/statement/008/fake-dnsbl-uncovered-nszones.com
 283                 http://www.backscatterer.org/
 284                         questionable policy - pay for (quicker) delisting
 285                         https://support.hornetsecurity.com/hc/en-us/articles/360011880797-Why-are-Hornetsecurity-IP-addresses-listed-at-Backscatterer-
 286                                 as of December 29, 2021: »The removal at the blacklist backscatterer.org can only be done for a fee«
 287                         https://www.warmy.io/blog/backscatterer-blacklist-how-to-remove-your-ip-from-it
 288                                 in March 17, 2023 does not mention need to pay
 289                         https://support.forcepoint.com/s/article/Forcepoint-IP-s-blocklisted-by-UCEProtect-and-Backscatterer-org
 290                                 recommend against using it
 291                         https://whatismyipaddress.com/backscatterer
 292                                 mentions strict delisting process and "express delisting" but nothing further
 293                         https://bobcares.com/blog/backscatterer-blacklist/
 294                                 goes through the process with screenshots showing express delisting for 109$
 295                         https://community.cisco.com/t5/email-security/issues-with-www-backscatterer-org-any-one/td-p/1298377
 296                                 more opinions
 297                         https://www.titanhq.com/blog/warning-ignore-pay-for-de-listing-blacklist-service/
 298                                 Jan 17th, 2020: »UCEProtect also charges a delisting fee. TitanHQ discourages email administrators from using the UCEProtect blacklist and we do not recommend paying for list removal«
 299                         https://web.archive.org/web/20150320180344/http://www.jvfconsulting.com/blog/130/Backscatterer_Network_Spam_List_Is_Another_UCEPROTECT_Extortion_Scam.html
 300                                 another opinion
 301         00_E_INFORMATION
 302                 blacklist.sci.kun.nl
 303                         https://cncz.science.ru.nl/en/howto/email-spam/
 304                         not really its own DNSBL?
 305                         no usage information
 306                         no usage policy
 307                 http://anonmails.de/
 308                         seems serious but missing necessary info
 309                                 usage policy
 310                                 listing policy
 311                 http://blacklist.jippg.org/
 312                         no usage policy
 313                         no listing policy
 314                         no return code info
 315                 bip.virusfree.cz
 316                         used by rspamd
 317                         https://www.virusfree.cz/en/help is the only place I can find any official reference to this list at all but no policies or usage information
 318                 https://www.nixspam.net/
 319                         previously http://www.dnsbl.manitu.net/
 320                         query zone: ix.dnsbl.manitu.net
 321                         provided by the reputable german publisher 'heise' which makes the high quality c’t, iX, and telepolis magacines
 322                         difficult to find info regarding listing policy
 323                         asked for more information to be added
 324                                 https://www.heise.de/forum/iX/Kommentare/Gemeinsam-stark/Nutzungsbedingungen-Return-Codes-sonstige-Infos/posting-42669177/show/
 325                 access.redhawk.org
 326                         website works but barely any info, not even how to query it
 327                         https://www.redhawk.org/?p=64
 328                         https://www.redhawk.org/SpamHawk/index.php
 329                 https://senderscore.org/
 330                         requires registration?
 331                         Scam? http://www.complaintsboard.com/complaints/buyer-beware-senderscoreorg-is-a-scam-c276871.html
 332                         https://senderscore.org/assess/blocklist-lookup/
 333                         FAQ: https://knowledge.validity.com/hc/en-us/articles/360006992592-Return-Path-Blocklist-RPBL-FAQ-
 334                         no information how to query found
 335                 mail-abuse.org
 336                         https://ers.trendmicro.com/
 337                         trendmicro paid service
 338                         https://docs.trendmicro.com/en-us/enterprise/email-reputation-services-online-help/getting-started_001/configuring-email-re/creating-an-account.aspx
 339                                 »If you don’t create an account, you can still query the reputation of an IP address«
 340                         I don’t find any pricing or usage information
 341                 http://dnsbl.tornevall.org/
 342                         https://www.tornevall.net/
 343                         related to https://www.fraudbl.org/
 344                         seems a bit unstructured and not very well documented
 345                                 I can’t be arsed to deal with confluence slowing my browser to a halt repeatedly and it’s really hard to navigate but there seems to be some information on https://docs.tornevall.net/display/TORNEVALL/Endpoint%3A+dnsbl+-+DNSBL+v5+with+API+v3
 346                         seems active
 347                 http://rbl.schulte.org/
 348                         seems active
 349                         listing policy seems to be: they received spam from an IP
 350                         usage policy: Anyone can use this RBL list [sic]
 351                         return codes: probably boolean, i.e. either listed or not
 352                 http://relaytest.kundenserver.de/
 353                         by 1und1 (now ionos?), used internally
 354                         https://www.blalert.com/dnsbl/relays.bl.kundenserver.de
 355                         no usage policy found
 356                         no listing policy found
 357                         no return code explanation found
 358                 http://www.blockedservers.com/
 359                         no usage policy
 360                         no listing policy
 361                         no documentation
 362                         "funny":
 363                                 No rights given; all rights are in the dumpster; Copyleft 2012 - 3013 - page generated in 0.009843111038208 secs
 364         00_E_PAID
 365         00_E_PRIVATE
 366                 88.blacklist.zap
 367                         http://blogs.technet.com/b/fss/archive/2009/05/08/forefront-dnsbl-yeah-or-nay.aspx
 368                         https://web.archive.org/web/20150812003556/http://blogs.technet.com/b/fss/archive/2009/05/08/forefront-dnsbl-yeah-or-nay.aspx
 369                         https://www.blalert.com/dnsbl/88.blacklist.zap
 370                                 88.blacklist.zap is an internal blacklist maintained by Microsoft's Forefront
 371                         https://www.dnsbl.com/search/label/frontbridge
 372                 http://drmx.org/
 373                         »Use of any DrMX.ORG DNS Zone is by request and by contract only.«
 374                 rbl.tdk.net
 375                         tdk.net seems dead on http(s)
 376                         private
 377                                 https://www.blalert.com/dnsbl/rbl.tdk.net
 378                         old link: http://postmaster.tdc.dk/publish.php?id=31787
 379                                 tdc.dk redirects to yousee.dk
 380                                 https://web.archive.org/web/20170703084224/http://postmaster.tdc.dk/publish.php?id=31787
 381                 rbl.zenon.net
 382                         private
 383                                 https://www.blalert.com/dnsbl/rbl.zenon.net
 384                         http://www.noc.zenon.net/rbl/
 385                         russian(?)
 386                 https://ahbl.org/
 387                         was public until 2015
 388                         now private, invite-only
 389         http://rfc-clueless.org/
 390                 lists domains
 391                         that do not adhere to common best practices or requirements
 392                 does NOT list spammers!
 393                 listing criteria are explained well
 394                         http://rfc-clueless.org/pages/listing_policy
 395                 return codes are explained
 396                         http://rfc-clueless.org/
 397                 usage policy is not so clear but the FAQ implies that it’s just free to use for everyone
 398                 many timeouts
 399                         first noticed in 2014 and deactivated
 400                         retried in 2023 and still the case
 401         http://spameatingmonkey.com/
 402                 lists IPs
 403                         that sent backscatter
 404                         that sent to spamtrap
 405                         added by policy
 406                                 this includes dial-up!
 407                                 https://spameatingmonkey.com/faq/policy-based-listing
 408                 lists domains/URIs
 409                         by age
 410                         in spam bodies
 411                 usage policy seems clear
 412                         https://spameatingmonkey.com/faq/query-limits
 413                 listing policy seems clear
 414                         https://spameatingmonkey.com/services
 415                 return codes documented
 416                         https://spameatingmonkey.com/services
 417                 http://blogspambl.com/
 418                         redirects to spameatingmonkey.com
 419         http://uribl.com/
 420                 lists domains/URIs
 421                         that appear in spam bodies
 422                         has whitelist
 423                 lists IPs
 424                         that URIs in spam bodies resolve to
 425                 return codes are documented
 426                         https://uribl.com/about.shtml#implementation
 427                         bitmasked
 428                         127.0.0.1 is used to signal abusive query behaviour
 429         http://wiki.junkemailfilter.com/index.php/Spam_DNS_Lists
 430                 called "hostkarma"
 431                 lists domains/URIs
 432                 lists IPs
 433                 usage policy is relatively clear that it’s free, except maybe for big for-profit oranizations
 434                 listing policy is documented
 435                 return codes are documented
 436                 seems very trustworthy
 437         http://www.sorbs.net/
 438                 good reputation
 439                 lists domains/URIs
 440                 lists IPs
 441                 usage policy is clear that it’s free
 442                 listing policy is documented
 443                 return codes are documented
 444                 seems trustworthy
 445         http://www.spamhaus.org/
 446                 good reputation
 447                 very well done
 448                 seems very professional
 449                 lists domains/URIs
 450                 lists IPs
 451                 usage policy is clear
 452                         https://www.spamhaus.org/organization/dnsblusage/
 453                 listing policies are clearly documented
 454                 return codes are clearly documented
 455         http://www.surbl.org/
 456                 good reputation
 457                 lists domains/URIs
 458                 usage policy is clear
 459                         https://surbl.org/usage-policy
 460                 listing policy is documented
 461                 return codes are documented
 462                         bitmasked
 463                         127.0.0.1 means blocked
 464         http://zapbl.net/
 465                 lists domains/URIs
 466                 lists IPs
 467                 listing policy seems clear
 468                         https://zapbl.net/policy
 469                 usage policy seems clearly free for everyone
 470                         https://zapbl.net/using
 471                 return codes are documented
 472                 seems well done
 473         https://rbl.foobar.hu/
 474                 lists domains/URIs
 475                 lists IPs
 476                 listing policy seems clear
 477                 usage policy seems clearly free for everyone
 478                 return codes are documented
 479                 possibly unmaintained or dead
 480                         footer says: ©2013-14
 481         http://apews.org/?page=filter
 482                 questionable
 483                         https://www.dnsbl.com/search/label/apews
 484                         https://whatismyipaddress.com/apews
 485                 dead?
 486                         no news on http://apews-user.blogspot.com/ since 2014
 487                 not further looked into because of the above
 488         https://www.dnswl.org/
 489                 seems to be run with best intentions but has had issues from what I have heard from some users
 490                 IRC channel has some activity
 491                 usage policy relatively clear
 492                         free within certain limits
 493                 listing policy
 494                         self-service
 495                 return codes are documented
 496         00_E_FOCUS
 497                 https://www.dnsblchile.org/index.en.html
 498                         chilenian spam so not interesting for me
 499                         seems alive
 500         00_LISTS_BLOGSPAMMERS
 501                 https://www.madavi.de/madavibl/
 502                         »This blacklist should only be used to block comment spammer (on blogs and websites). Don’t use it for mail.«
 503                 http://bsb.empty.us/
 504                         does not exist anymore
 505                         empty.us returns »Nothing here, obviously.«
 506         00_LISTS_COUNTRIES
 507                 korea
 508                         http://korea.services.net/
 509         00_LISTS_DIALUPS
 510         00_LISTS_OPENRESOLVERS
 511         00_LISTS_TORNODES
 512                 https://www.dan.me.uk/dnsbl
 513                 http://rbl.efnetrbl.org/
 514                         aka http://tor.efnet.org/
 515                         lists IPs
 516                         lists open proxies, infected machines, tornodes, etc.
 517         https://0spam.org/
 518                 clear information on usage policy
 519                         Nothing. The 0Spam Project is absolutely free for email providers, IT professionals and general removal request.
 520                         DNSBL service and removals are 100% for free for all uses; commercial, non profit and personal.
 521                 seems serious
 522                 listing policies are a little less clear
 523                         bl.0spam.org DNSBL | 0spam Spam Trap Primary Database
 524                         nbl.0spam.org Network Black List | Spam Source Networks, high volume of spam trap hits in a Class C block will result in network listings in this DNSBL.
 525                         url.0spam.org URL Black List | This list contains the IP address of domains found to be in the source of spam emails found in our traps.
 526                 return codes not very clear
 527         https://abuse.ro/
 528                 policy
 529                         spamtraps
 530                         The last IP address before destination in the email headers is listed into rbl.abuse.ro list.
 531                         Sender domains are analyzed and if confirmed to be not spoofed, are listed into dbl.abuse.ro list
 532                         Spamvertized domains (including those indirectly linked through services like bit.ly) are listed into uribl.abuse.ro list
 533         http://dronebl.org/
 534                 usage policy is clear: free for whatever
 535                 listing policy is not quite so clear
 536                         can be mostly inferred from the classes but not entirely clear IMHO
 537                 has an IRC channel
 538                 return codes
 539                         not explicitly mentioned but it’s 127.0.0.X where X is the class from https://dronebl.org/classes
 540         http://psbl.org/
 541                 query zone: psbl.surriel.com
 542                 no usage policy, but seems implied that usage is free
 543                 listing policy
 544                         no explicit, complete policy given but sending to spamtraps is mentioned to get you listed and seems the exclusive mechanism
 545                 return codes
 546                         not documented, probably only boolean
 547         http://rbldata.interserver.net/
 548                 listing policy more or less clear
 549                 usage policy not given but since usage is explained it’s probably free for all
 550                 return codes seem to be binary, i.e. either listed or not
 551                 lists IPs
 552                 lists domains/URIs
 553         http://rv-soft.info/
 554                 usage policy not explicit but seems to be free
 555                 listing policy also not explicit but can be inferred from return code explanation
 556                 return codes are explained
 557         http://spamrats.com/
 558                 clear usage policy (ToS)
 559                 listing policies documented
 560                 return codes of aggregated list documented
 561                 lists IPs
 562         http://v4bl.org/
 563                 usage policy documented
 564                 listing policy not really clear
 565                 return codes documented
 566         http://wpbl.info/
 567                 listing procedure is documented
 568                 usage policy implied: free to use
 569                 return codes documented
 570         http://www.aupads.org/
 571                 aka www.antispam-ufrj.pads.ufrj.br
 572                 aka www.orve.org
 573                 listing policy more or less clear
 574                 lists IPs and FQDNs
 575                 usage policy seems clear: freely exported by anybody who wants to use them«
 576         http://www.emailbasura.org/cgi-bin/emailbasura-ini.pl?lang=eng
 577         http://www.gbudb.com/truncate/
 578         http://www.justspam.org/
 579         http://www.kempt.net/dnsbl/
 580         http://www.leadmon.net/spamguard/
 581         http://www.spamcop.net/
 582                 good policy
 583                 good reputation
 584         http://www.spamsources.fabel.dk/
 585                 sensible policy
 586         http://www.srntools.com/blacklist/
 587         http://www.uceprotect.net/en/index.php
 588         https://bl.konstant.no/
 589         https://choon.net/rbl.php
 590         https://www.abuse.ch/
 591                 https://www.abuse.ch/?tag=httpbl
 592         https://www.kisarbl.or.kr/
 593         https://www.megarbl.net/
 594         https://www.team-cymru.org/Services/Bogons/dns.html
 595         http://mailspike.net/usage.html
 596                 reputation-based
 597         http://www.whitelisted.org/
 598                 paid subscription
 599                 policy on site
 600         https://puck.nether.net/or/
 601                 policies on website
 602         http://www.isipp.com/email-accreditation/iadb-query-instruction/
 603                 requires signup
 604                 not quite a usage policy, but seems ok
 605                 strange split of ipv4 and ipv6
 606                 seems dead?