Polspam RHSBL RBL Hard Blacklist
The Polspam RHSBL is a Polish blocklist (blacklist) identifying spamming domains for mail scoring in spam filters rather than outright rejection.
Updated on 18 Jun 2026: We tightened the RHSBL-H guidance around lookup responses, hosting-provider cleanup, and the evidence Polspam expects before delisting.
Summarize with
Check if you are listed on Polspam RHSBL RBL Hard Blacklist
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 the Polspam RHSBL-H blacklist?
The Polspam RHSBL-H blacklist is a domain-based blocklist (blacklist) that lists domain names Polspam has identified during spam recognition. It is part of rbl.polspam.pl, a Polish RBL server, and its DNS zone is rhsbl-h.rbl.polspam.pl.
Polspam labels this zone as a hard RHSBL, but its published list table says to use it with a spam filter only and not to reject mail. The listed response is 127.0.0.2. In practice, a receiver can use the result to add weight in a mail filter, but a direct SMTP block based only on RHSBL-H conflicts with Polspam's guidance.
Who runs the Polspam RHSBL-H blacklist?
The Polspam RHSBL-H blacklist is operated by Polspam, which describes itself as a Polish RBL server. Polspam says the project is non-commercial, volunteer-run, and based on reports from the internet community. It does not sell delisting or sponsorship. Its role is to publish reputation data that receiving mail administrators decide how to use.
How to check a Polspam RHSBL-H listing
Check the domain itself, not only the sending IP. RHSBL-H stores domain names, while Polspam's IP blocklists and blacklists are separate zones. A shared IP can still be affected when another hosted domain has caused the IP to be listed.
DNS lookup examplesbash
nslookup example.com.rhsbl-h.rbl.polspam.pl nslookup example.com.rhsbl.rbl.polspam.pl
For RHSBL-H, Polspam publishes 127.0.0.2 as the listed response. The standard RHSBL domain list uses 127.1.1.1, so checking both zones helps separate a hard candidate listing from the main domain blacklist.
- Query the domain and any subdomains that send mail or appear in message links.
- Review the A, AAAA, MX, and SMTP hostnames tied to the domain, because Polspam says related DNS records can trigger IP blacklist entries.
- Keep a plain text record of lookup results, cause analysis, and fixes before sending a delisting request.
- Ask the hosting provider for help when the domain is clean but the shared IP remains on a Polspam blocklist (blacklist).
How do I get delisted from the Polspam RHSBL-H blacklist?
The delisting process for the Polspam RHSBL-H blacklist is strict and requires complete honesty. Polspam says it does not delist notorious or deliberate spamming domains. Removals are considered mainly for one-off incidents believed to be unintentional. Polspam treats outsourced spam, one-use domains, mass mailing services, hidden landing pages, and spam sent behind another domain as deliberate behavior.
Send the request as plain text only. Polspam says messages containing HTML, scripts, graphics, logos, remote tracking objects, or similar loaded content can end future interaction. Your email must include the following information:
- The listed domain name.
- The domain's IP address.
- A detailed, honest account of the suspected listing cause, including whether spam was sent directly, through a third party, through a landing page, or by a hosted customer.
- Relevant evidence such as bounce text, headers, affected domains, and what changed to stop the spam.
Do not send a short denial. Polspam says it verifies domain history, neighboring domains, and past hosting. Treat the correspondence as domain-to-domain, so personal signatures are not needed.
For hosting-provider delisting, Polspam expects the sender domain, SMTP server domain, and hosting domain to be properly configured. Practical checks include DMARC with p=reject, a working DKIM signature, SPF ending in -all, TLS 1.2 or higher for mail, no remote trackers in individual emails, and HTTPS on related websites. Suped's DMARC reporting product can help connect aggregate reports to SPF, DKIM, and DMARC alignment fixes before contacting Polspam.
If your IP address is on the blacklist but your domain is not, it is likely due to another domain on the same shared IP address sending spam. In this case, contact your hosting provider. The provider needs to identify and remove the spamming domain. Once the offending domain is dealt with, the host IP address should be automatically delisted after seven days without manual intervention. Changing hosting provider alone does not fix a domain listing because Polspam says a blacklisted domain can carry the issue to a new host.
What's the impact of being listed on the Polspam RHSBL-H blacklist?
The impact of being listed on the Polspam RHSBL-H blacklist is usually lower than an IP-level rejection list, but it is not zero. A receiver that uses RHSBL-H as a spam score signal can place mail into junk, add quarantine handling, or trigger extra review, especially when the sending domain also fails SPF, DKIM, or DMARC alignment.
If a receiver ignores Polspam's instruction and rejects on RHSBL-H alone, messages can bounce even though the zone is not intended for that use. The receiving administrator controls the final action, so senders should treat a listing as reputation evidence to investigate, not only as a DNS entry to remove.
Other Polspam blocklists
Polspam Blacklist (BL)
Organization
Polspam
Zone
bl.rbl.polspam.pl
Type
IP
Impact
Low
Delisting
Manual
Polspam Dynamic IP Blacklist (BL)
Organization
Polspam
Zone
bl-h4.rbl.polspam.pl
Type
IP
Impact
Low
Delisting
Manual
Polspam Level 1 Blacklist (BL)
Organization
Polspam
Zone
bl-h1.rbl.polspam.pl
Type
IP
Impact
Low
Delisting
Manual
Polspam Level 2 Blacklist (BL)
Organization
Polspam
Zone
bl-h2.rbl.polspam.pl
Type
IP
Impact
Low
Delisting
Manual
Polspam Level 3 Blacklist (BL)
Organization
Polspam
Zone
bl-h3.rbl.polspam.pl
Type
IP
Impact
Low
Delisting
Manual
Polspam RHSBL RBL Blacklist
Organization
Polspam
Zone
rhsbl.rbl.polspam.pl
Type
Domain
Impact
Low
Delisting
Manual
Polspam RHSBL RBL Danger Blacklist
Organization
Polspam
Zone
rhsbl-danger.rbl.polspam.pl
Type
Domain
Impact
Low
Delisting
Manual
Polspam RHSBL RBL Very Hard Blacklist
Organization
Polspam
Zone
rhsbl-v.rbl.polspam.pl
Type
Domain
Impact
Low
Delisting
Manual
Polspam Wrong Reverse Blacklist (BL)
Organization
Polspam
Zone
bl-h5.rbl.polspam.pl
Type
IP
Impact
Low
Delisting
Manual
