Fabel Spamsources
Fabel Spamsources is an IP address blocklist (or blacklist) from Denmark that tracks spam sources and provides a simple self-service delisting process.
Updated on 17 Jun 2026: We updated this guide to clarify Fabel's DNSBL lookup process, delisting requirements, and IP-only scope.
Summarize with
Check if you are listed on Fabel Spamsources
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 Fabel Spamsources?
Fabel Spamsources is an IP-based DNS blocklist (blacklist) operated by the Danish organization Fabel. Its primary policy is to list IP addresses that have been observed sending spam to Fabel's network or to fabel.dk members. The blocklist does not include domain names or websites, focusing solely on the source IP address of the mail server.
An IP address is more likely to be added to this blacklist if its abuse contact information, found in the public WHOIS records, is incorrect or unresponsive. Fabel sends abuse complaints to this contact first. A lack of a reasonable response can lead to the listing of a larger netblock. The list can be queried via DNS at spamsources.fabel.dk and is designed for DNSBL-compatible anti-spam filters.
How to query Fabel Spamsources
Fabel Spamsources can be checked through DNSBL queries against spamsources.fabel.dk. For a manual check, use Fabel's lookup page and submit only an IP address. Domain names and website URLs are not valid lookup targets.
DNSBL zone
spamsources.fabel.dk
If your mail filter uses the list, keep the score conservative and test it against your own inbound mail. Fabel publishes the service without warranty, so a listing should be one signal in a broader anti-spam policy, not the only reason to reject mail.
Who runs Fabel Spamsources?
Fabel Spamsources is run by Fabel, a Danish organization that began in 1998. It was originally formed in reaction to a proposal that would have legalized unsolicited commercial email in Denmark. Fabel advocates for the responsible use of email as a tool for communication and commerce. The organization also operates an email forwarding service and Spamsources to reduce unwanted mail for its users and fabel.dk members.
How do I get removed and delisted from Fabel Spamsources?
Removal from the Fabel Spamsources blocklist is a self-service process. You can request delisting directly through a form on their website. According to Fabel, the DNS list typically updates within 20 minutes of a successful delisting request.
Before you request removal, take the following steps:
- Confirm that your mail server, website forms, hosted mailboxes, scripts, and forwarding rules are no longer sending spam.
- If you are on shared hosting or a managed server, ask the provider to investigate the outbound mail source and abuse handling.
- Check the public WHOIS abuse contact for the IP address and fix invalid or unmonitored contact details.
- Use the Fabel delisting page after the source of abuse has been handled. The form asks for the IP address, a reason for removal, and a login with an email address you read regularly.
What's the impact of being listed on Fabel Spamsources?
The impact of being on the Fabel Spamsources blocklist is usually limited compared with larger global blocklists. This blacklist (or blocklist) is primarily used to protect Fabel's own network and its members, so a listing causes delivery issues mainly with recipients whose mail providers use this specific list.
If the listed IP address does not send email, the listing has no direct mail delivery impact for that host. If it does send email, treat the listing as a reputation signal and review outbound mail logs, abuse reports, authentication alignment, server security, and shared hosting activity before requesting removal.
