Abusix Exploit Blocklist
The Abusix Exploit Blocklist is a real-time IP blacklist for compromised systems, botnets, and proxies. Use Suped for monitoring and DMARC management.
Updated on 17 Jun 2026: We updated this guide with practical prevention steps for shared IPs, outbound port 25, SMTP identity, and repeat Abusix Exploit listings.
Summarize with
Check if you are listed on Abusix Exploit Blocklist
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 Abusix Exploit Blocklist?
The Abusix Exploit Blocklist is a real-time blacklist (or blocklist) that lists IP addresses exhibiting malicious behavior. It is a behavioral DNSBL generated by monitoring hosts connecting to a wide network of spam traps, SMTP inputs, and partner mail services. It specifically targets IP addresses that behave like compromised hosts, botnet, malware, or virus infections, open proxies, VPNs, and Tor exit nodes. This activity is not typical of a legitimate SMTP server, making this blocklist effective at identifying sources of abusive traffic.
Abusix can list an IP when the SMTP client identifies itself as a host it is not, authenticates to a trap network, sends messages that seriously breach SMTP RFCs, matches known spamware behavior, or submits spam through web forms. This DNSBL is used by internet service providers, telecommunication companies, and hosting providers to filter incoming email and network traffic. It can also be used to check each hop in an email's 'Received' headers to trace the origin of a malicious message. Here is some technical information about this blacklist:
- Blocklist Zone: exploit.mail.abusix.zone
- Listing Type: IP addresses (both IPv4 and IPv6)
- Return Code: A listing will return the code 127.0.0.4.
- Listing Duration: A listed IP address will typically remain on the blocklist for approximately 5.2 days after the last malicious traffic was detected.
Who runs Abusix Exploit Blocklist?
The Abusix Exploit Blocklist is operated by Abusix, which publishes DNS-based threat intelligence lists for mail and network operators. For this blacklist, Abusix uses SMTP inputs and trap data to identify IPs whose client behavior matches compromised hosts, infected devices, open proxies, shared exit points, or other abusive sources.
How do I get removed and delisted from Abusix Exploit Blocklist?
If you find your IP address on this blacklist, the first step is to identify and resolve the root cause of the listing. Abusix listings are evidence based, and repeat malicious traffic can cause the IP to be listed again after removal. Before requesting removal, address common issues that lead to a blocklisting:
- Review your mailing lists to ensure you are using confirmed opt-in and have protection against automated bot signups.
- Check that your bounce management and subscriber engagement processes are working correctly.
- Confirm you are not using purchased or appended email lists.
- Secure any compromised user accounts, infected computers, routers, servers, or IoT devices on your network.
- If your mail server shares a public IP with a NAT pool, block outbound TCP port 25 from non-mail hosts and move the SMTP server to its own external IP where possible.
- Verify that the SMTP hostname and HELO/EHLO identity use a domain you control, and do not strip Received headers.
Once you have fixed the underlying problem, you can request to be delisted. The process is free, but it requires you to create an account to prevent abuse of the delisting system. You can request removal by visiting the Abusix Lookup and Delisting page. Follow the instructions to look up your IP, create an account, and submit a removal request. Delisting requests are processed immediately. While DNS queries will reflect the removal instantly, propagation to all networks that use the blacklist can take up to five minutes.
How to prevent repeat listings
Abusix lists the IP because of observed behavior, so prevention needs to focus on the source of the traffic rather than the delisting form. Many exploit listings come from infected endpoints or network devices that bypass the normal mail server and connect directly to recipient MX hosts over TCP port 25.
- Patch operating systems, routers, CMS installs, plugins, and firmware that can send mail or expose web forms.
- Restrict outbound TCP port 25 so only approved mail servers can connect directly to MX hosts.
- Keep SMTP servers off shared NAT, VPN, or end-user egress IPs where compromised devices use the same public address.
- Set the mail server hostname and HELO/EHLO identity to a valid domain you control, and keep Received headers intact for troubleshooting.
- Use Suped to review DMARC aggregate reports, map legitimate senders, and investigate unknown sources using your domain before they become wider deliverability issues.
What's the impact of being listed on Abusix Exploit Blocklist?
The impact of being on the Abusix Exploit Blocklist is usually medium. A listing can result in SMTP rejects, spam-folder placement, or blocked traffic at recipients whose providers use this data. The disruption depends on whether the listed IP is your dedicated mail server, a shared provider server, a NAT egress address, or a VPN or proxy exit point.
If the listed IP belongs to your email provider, hosting provider, or ISP, you usually cannot resolve the blacklist issue directly. The provider needs to identify the abusive customer traffic, fix the compromised host or misconfiguration, and request delisting after the source is under control.
Other Abusix blocklists
Abusix Authbl Blocklist
Organization
Abusix
Zone
authbl.mail.abusix.zone
Type
IP
Impact
Medium
Delisting
Manual
Abusix Combined Blocklist
Organization
Abusix
Zone
combined.mail.abusix.zone
Type
IP
Impact
Medium
Delisting
Manual
Abusix Domain Blocklist
Organization
Abusix
Zone
dblack.mail.abusix.zone
Type
Domain or IP
Impact
Medium
Delisting
Manual
Abusix nod List (Newly Observed Domains)
Organization
Abusix
Zone
nod.mail.abusix.zone
Type
Domain
Impact
Medium
Delisting
Automatic
Abusix noip List (Newly Observed IPs)
Organization
Abusix
Zone
noip.mail.abusix.zone
Type
IP
Impact
Medium
Delisting
Automatic
Abusix Policy Blocklist
Organization
Abusix
Zone
dynamic.mail.abusix.zone
Type
IP
Impact
Medium
Delisting
Manual
Abusix Spam Blocklist
Organization
Abusix
Zone
black.mail.abusix.zone
Type
IP
Impact
Medium
Delisting
Manual
