Anonmails DNSBL
The Anonmails DNSBL is a public blocklist (blacklist) that lists IP addresses that have sent spam to their servers and spam traps.
Updated on 17 Jun 2026: We added the Anonmails SpamAssassin rule and removal form requirements so senders can troubleshoot faster.
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Check if you are listed on Anonmails DNSBL
And 143 other blocklists.
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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 Anonmails DNSBL?
The Anonmails DNSBL is a DNS-based blocklist (blacklist) that lists IP addresses seen sending spam to servers or spam traps operated by Anonmails. Receiving mail systems can query it during filtering to help identify unwanted mail before delivery.
A listing means Anonmails has detected suspicious email activity from that IP address. Mail servers that use this DNSBL can reject, quarantine, score, or route messages from the listed IP depending on local policy. The technical zone for this IP blacklist is spam.dnsbl.anonmails.de.
Who runs Anonmails DNSBL?
Anonmails operates the DNSBL. Anonmails is a German service focused on disposable or alias email addresses and spam protection. Its main site lets users generate temporary and unique email aliases, which limits exposure of a primary mailbox when signing up for websites or services.
Spam sent to those aliases gives Anonmails data for its spam controls. The public blacklist (blocklist) publishes IP listings through the spam.dnsbl.anonmails.de zone.
How to use Anonmails DNSBL
Anonmails publishes the DNSBL zone for receivers that want to use it in filtering rules. Its official example is for SpamAssassin, where a positive lookup adds a score to the message.
SpamAssassin rule for Anonmails DNSBLtext
# spam.dnsbl.anonmails.de header RCVD_IN_ANONMAILS eval:check_rbl('anonmails-lastexternal', 'spam.dnsbl.anonmails.de.') describe RCVD_IN_ANONMAILS Relay is listed in spam.dnsbl.anonmails.de tflags RCVD_IN_ANONMAILS net score RCVD_IN_ANONMAILS 3.0
Treat the score of 3.0 as Anonmails' published example, not a universal rejection policy. Test it against your own mail flow before using the blacklist to reject messages.
How to get removed from Anonmails DNSBL
Anonmails uses a self-service removal request on its website. Before you request delisting, identify and fix the issue that caused the IP address to be listed on the blacklist. If the same traffic continues, the IP can be listed again.
- Investigate mail server logs for the source of the spam, including compromised accounts, web scripts, form abuse, or misconfigured applications.
- Secure the sending environment by resetting affected credentials, patching vulnerable software, and applying outbound rate limits or filtering.
- Review acquisition and consent practices for marketing mail, including confirmed opt-in, accurate sender identity, suppression handling, and working unsubscribe links.
- Check email authentication before resuming normal volume. Suped helps teams review SPF, DKIM, and DMARC reporting for domains tied to the affected mail stream.
The removal request asks for the IP address, contact name, a notice explaining the request, and captcha verification. Use the Anonmails removal request after the issue has been fixed.
What is the impact of an Anonmails DNSBL listing?
The practical impact of an Anonmails DNSBL listing is usually low because it is a niche public DNSBL. It can still affect delivery at receivers that query spam.dnsbl.anonmails.de directly or through filtering rules, including smaller providers, private mail servers, regional organizations, and custom filtering gateways.
A listing can add sender reputation risk when recipients use the blocklist as part of scoring. Delisting matters, but the root fix matters more: stop the unwanted traffic, confirm only authorized systems send for your domains, and monitor new failures after mail resumes.
