8086 Consultancy MSRBL Combined Realtime Blacklist (RBL)
The 8086 Consultancy MSRBL is a combined IP blocklist (or blacklist) that identifies servers sending spam, phishing, and viruses.
Updated on 17 Jun 2026: We added clearer MSRBL zone details, verification steps, and safer delisting guidance.
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Check if you are listed on 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL)
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 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL)?
The 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL) is a DNS-based IP address blocklist (blacklist) that aggregates data from several more specialized MSRBL zones. As a combined blacklist, it lists IP addresses observed sending virus mail, phishing mail, image spam, or other unsolicited email. Mail server administrators use this RBL lookup data to score, filter, or reject incoming mail from risky sources.
This specific blacklist (or blocklist) is a composite of the following MSRBL zones:
- virus.rbl.msrbl.net: Lists hosts that have been observed sending emails containing viruses.
- phishing.rbl.msrbl.net: Lists hosts known for sending phishing emails.
- images.rbl.msrbl.net: Contains hosts that send mail with spam images.
- spam.rbl.msrbl.net: Lists hosts sending unsolicited mail.
- combined.rbl.msrbl.net: Includes all of the MSRBL zones above in one DNSBL query zone.
The operators of MSRBL advise against using their lists to block mail outright. They recommend using the data as part of a scoring process, mainly to reduce the server resources spent on virus and spam checks. That makes the list more useful as a filtering signal than as the only reason to reject a message.
Who runs 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL)?
The MSRBL project is operated by Chris Burton of 8086 Consultancy, a consultancy based in the United Kingdom.
How to investigate an MSRBL listing
Start by confirming which outbound IP address is listed and which MSRBL zone returned a match. A listing on virus.rbl.msrbl.net points to malware or compromised devices, while phishing.rbl.msrbl.net points to credential theft or impersonation attempts. Listings on images.rbl.msrbl.net or spam.rbl.msrbl.net usually point to bulk spam, abusive scripts, compromised accounts, or misconfigured outbound mail.
- Check the exact sending IP in your mail logs and confirm it is a server or gateway you control.
- Review recent outbound mail volume, sender accounts, scripts, contact forms, and queue contents for sudden spikes or repeated failed deliveries.
- Scan the affected server and connected devices for malware, then patch exposed software and rotate credentials for any account that sent suspicious mail.
- Check SPF, DKIM, and DMARC results so unauthorized mail using your domain is easier to identify and block. Suped can help centralize DMARC reports while you compare legitimate senders against suspicious traffic.
- Keep monitoring the outbound queue after remediation, because MSRBL keeps a listing active for 3 days after the last relevant notification.
How do I get removed and delisted from 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL)?
The delisting process from 8086 Consultancy MSRBL is mostly automatic. An IP address is removed 3 days after the last virus, phishing, image spam, or spam notification received for that IP. Once the underlying issue is fixed and no new detections arrive, the listing should expire on its own.
Before waiting for automatic removal, make sure the system is no longer sending spam or malicious mail. Run a full virus and malware scan on the affected computer, server, or gateway, then review outbound mail logs for compromised accounts, infected devices, or abused scripts.
You can check the status of an IP address through the Check DB page on the MSRBL website and follow any removal instructions shown there. If the IP belongs to an ISP relay, the ISP can request that its individual mail server IPs not be listed.
What's the impact of being listed on 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL)?
The impact of being listed on this blacklist is usually low to moderate. MSRBL says it does not block mail itself and recommends that administrators avoid using the list for strict rejection. Even so, each receiving system decides how to use the RBL result, so a listing on a blacklist (or blocklist) can still affect email delivery.
- Some email systems use the listing to add points to a spam score, which increases the chance that messages go to the recipient's junk folder.
- Although MSRBL advises against hard blocking, some administrators configure systems to reject mail from any IP on the blocklist, which leads to bounced emails.
- A listing is a security signal that the mail server, outbound gateway, or another device on the network needs immediate investigation.
Other 8086 Consultancy MSRBL Combined Realtime Blacklist (RBL) blocklists
8086 Consultancy MSRBL Images Realtime Blacklist (RBL)
Organization
8086 Consultancy
Zone
images.rbl.msrbl.net
Type
IP
Impact
Low
Delisting
Automatic
8086 Consultancy MSRBL Phishing Realtime Blacklist (RBL)
Organization
8086 Consultancy
Zone
phishing.rbl.msrbl.net
Type
IP
Impact
Low
Delisting
Automatic
8086 Consultancy MSRBL Spam Realtime Blacklist (RBL)
Organization
8086 Consultancy
Zone
spam.rbl.msrbl.net
Type
IP
Impact
Low
Delisting
Automatic
8086 Consultancy MSRBL Virus Realtime Blacklist (RBL)
Organization
8086 Consultancy
Zone
virus.rbl.msrbl.net
Type
IP
Impact
Low
Delisting
Automatic
