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