Abusix Policy Blocklist
The Abusix policy blocklist (or blacklist) identifies IP addresses that must use smarthosts for relaying instead of connecting to SMTP servers directly.
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Check if you are listed on Abusix Policy 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 Policy Blocklist?
The Abusix Policy Blocklist is a specific type of IP-based blacklist that contains a list of IP addresses that should not be connecting directly to external SMTP servers. It is operated on the DNS zone dynamic.mail.abusix.zone. The purpose of this list is to preemptively identify any IP address that is unsuitable for sending email directly, helping to catch threats like newly compromised hosts or hijacked IP space without needing to wait for spam reports.
This blocklist is built by continuously scanning the entire IPv4 range and applying a strict policy. An IP address will be listed on this blacklist if it fails to meet certain criteria. The policy is primarily focused on Reverse DNS (rDNS) records. Key listing criteria include:
- The IP address must have a valid rDNS record.
- The rDNS must not be a generic or 'templated' hostname. For example, the rDNS should not contain parts of the IP address itself.
- Contiguous ranges of IP addresses must not all share the same rDNS record.
When an IP is queried against this blocklist, specific return codes indicate the reason for the listing. A return code of 127.0.0.11 means the host has a generic rDNS, while 127.0.0.12 means the host has no rDNS at all. It is important to note that it is normal for non-SMTP server IPs to be on this list; this will not cause any negative effects for services other than email.
Who runs Abusix Policy Blocklist?
The Abusix Policy Blocklist is run by Abusix, a company specializing in network abuse management, email security, and threat intelligence. Abusix provides comprehensive solutions designed to protect networks and improve internet security.
The company's focus is on stopping threats before they reach end-users by targeting the most common vectors for cyberattacks, such as email and network traffic. They offer proactive security solutions that are a first line of defense, blocking a high percentage of email-based threats and helping organizations manage network abuse effectively.
How do I get removed and delisted from Abusix Policy Blocklist?
Removing your IP from the Abusix Policy Blocklist (blacklist) is a straightforward process. Before you begin, you must fix the underlying issue. Since this is a policy blocklist, the problem is almost always related to the IP's rDNS configuration. Ensure your IP address has a unique, non-generic rDNS record that reflects the hostname of the sending server.
Once you have corrected the rDNS issue, you can request delisting. Anyone can request removal, and a semi-permanent exception will be created. You can start the process by visiting the Abusix Lookup and Delisting page. You will need to create a free account to submit a delisting request; this is required to prevent anonymous abuse of the system. Follow the instructions in the user portal to remove your IP. Note that you can only delist single IP addresses, not entire CIDR ranges.
Delisting requests are processed immediately. The change will reflect in DNS queries instantly, but it may take up to five minutes for the removal to propagate to customers who use rsync to get the blacklist data.
What's the impact of being listed on Abusix Policy Blocklist?
The impact of being listed on the Abusix Policy Blocklist is medium. This blacklist is used by organizations as a first-line defense on their border SMTP hosts to reject connections from IPs that do not meet standard internet policies for mail servers. If your IP address is on this list, your emails will be blocked by any mail server that uses this specific blocklist.
However, the impact is targeted. Abusix warns that this zone should only be used to check the IP address that is handing off the email to the mail server. It should not be used to check IPs in 'Received' headers or on smart hosts, as this can cause a significant number of false positives. This means that while a listing can cause delivery failures, its use is more specific than a traditional spam-based blacklist.
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 Exploit Blocklist
Organization
Abusix
Zone
exploit.mail.abusix.zone
Type
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 Spam Blocklist
Organization
Abusix
Zone
black.mail.abusix.zone
Type
IP
Impact
Medium
Delisting
Manual
