2stepback.dk Spam Block List
2stepback.dk was a private, paid IP-based blocklist (blacklist) from a defunct Danish ISP with no clear delisting process.
Updated on 17 Jun 2026: We updated this guide with clearer DNSBL context and cleanup steps for old 2stepback.dk configurations.
Summarize with
Check if you are listed on 2stepback.dk Spam Block List
And 143 other blocklists.
Spamhaus
0Spam
Cisco
NoSolicitado
URIBL
abuse.ro
ALPHANET
Anonmails
Ascams
BLOCKEDSERVERS
Calivent Networks
EFnet
JustSpam
Kempt.net
NordSpam
RV-SOFT Technology
Scientific Spam
Spamikaze
SpamRATS
SPFBL
Suomispam
System 5 Hosting
Team Cymru
Validity
www.blocklist.de Fail2Ban-Reporting Service
ZapBL
2stepback.dk
Fayntic Services
ORB UK
technoirc.org
TechTheftSpamhaus0SpamCiscoNoSolicitadoURIBLabuse.roALPHANETAnonmailsAscamsBLOCKEDSERVERSCalivent NetworksEFnetJustSpamKempt.netNordSpamRV-SOFT TechnologyScientific SpamSpamikazeSpamRATSSPFBLSuomispamSystem 5 HostingTeam CymruValiditywww.blocklist.de Fail2Ban-Reporting ServiceZapBL2stepback.dkFayntic ServicesORB UKtechnoirc.orgTechTheftSpamhaus0SpamCiscoNoSolicitadoURIBLabuse.roALPHANETAnonmailsAscamsBLOCKEDSERVERSCalivent NetworksEFnetJustSpamKempt.netNordSpamRV-SOFT TechnologyScientific SpamSpamikazeSpamRATSSPFBLSuomispamSystem 5 HostingTeam CymruValiditywww.blocklist.de Fail2Ban-Reporting ServiceZapBL2stepback.dkFayntic ServicesORB UKtechnoirc.orgTechTheftSpamhaus0SpamCiscoNoSolicitadoURIBLabuse.roALPHANETAnonmailsAscamsBLOCKEDSERVERSCalivent NetworksEFnetJustSpamKempt.netNordSpamRV-SOFT TechnologyScientific SpamSpamikazeSpamRATSSPFBLSuomispamSystem 5 HostingTeam CymruValiditywww.blocklist.de Fail2Ban-Reporting ServiceZapBL2stepback.dkFayntic ServicesORB UKtechnoirc.orgTechTheftSpamhaus0SpamCiscoNoSolicitadoURIBLabuse.roALPHANETAnonmailsAscamsBLOCKEDSERVERSCalivent NetworksEFnetJustSpamKempt.netNordSpamRV-SOFT TechnologyScientific SpamSpamikazeSpamRATSSPFBLSuomispamSystem 5 HostingTeam CymruValiditywww.blocklist.de Fail2Ban-Reporting ServiceZapBL2stepback.dkFayntic ServicesORB UKtechnoirc.orgTechTheftWhat is 2stepback.dk Spam Block List?
The 2stepback.dk Spam Block List was a private, paid IP-based DNSBL (blacklist) operated by the now-defunct Danish internet service provider 2stepback.dk. Its listed query zone was sbl.2stepback.dk. Administrators could use the SBL (Spam Block List) databases in mail server filtering rules to check connecting IP addresses during spam filtering.
According to its policy, the blocklist was intended to be a commercial product, with access priced per database. It also described planned country-specific blacklist zones that would let users block mail associated with specific country codes, such as RU for Russia. Because the company and its DNSBL infrastructure are no longer active, this blacklist (blocklist) is defunct.
Who ran 2stepback.dk Spam Block List?
The 2stepback.dk Spam Block List was operated by 2stepback Inc., a Danish ISP. The company is defunct and no longer operates the related email filtering infrastructure. During its time, 2stepback Inc. offered services aimed mainly at the Danish market.
- DNS service, paid DNS hosting.
- Email hotel, hosted email for domains with multiple accounts.
- Email account, individual email accounts under the 2stepback.dk domain.
- SBL databases, the commercial spam blacklist (blocklist) service.
- Banner advertising, advertising space on the website and forum.
How do I get removed and delisted from 2stepback.dk Spam Block List?
You cannot request removal or delisting from the 2stepback.dk Spam Block List because the service is defunct. The company that operated it, 2stepback Inc., has ceased operations, and the associated DNS servers and infrastructure are no longer active.
When the blacklist was active, it was a private, pay-to-use service with no public self-service lookup or clear removal instructions in the available policy text. If an old report still says an IP is listed at sbl.2stepback.dk, treat that as stale blacklist data rather than an active deliverability issue.
What is the impact of being listed on 2stepback.dk Spam Block List?
The impact of being listed on the 2stepback.dk Spam Block List is effectively zero. Since the blacklist and the company behind it are defunct, no active receiver should rely on it as a current reputation source. A mail server configured to query sbl.2stepback.dk would be relying on an inactive DNSBL, so any result should not be treated as a current reputation signal.
For sender troubleshooting, prioritize current rejection logs, SMTP bounce messages, IP reputation, reverse DNS, SPF, DKIM, and DMARC alignment before spending time on this defunct blacklist. A stale listing on this blocklist will not affect deliverability unless a receiver has kept obsolete local rules in place.
What should administrators do with old 2stepback.dk DNSBL settings?
If you find sbl.2stepback.dk in a mail server, spam filter, firewall, or policy daemon configuration, remove it. A dead DNSBL can add DNS lookup latency, produce confusing log entries, and leave teams chasing stale blacklist data.
- Search mail server and filtering configuration for sbl.2stepback.dk and any 2stepback.dk country-code zones.
- Remove reject, score, or quarantine rules that depend only on this DNSBL.
- Check recent mail logs for DNS lookup failures, timeouts, SERVFAIL, or NXDOMAIN responses tied to the old zone.
- Use maintained DNSBL data only when the provider publishes clear listing criteria, query limits, and a removal process.
