Realtime Spammers Blacklist: What Is It and How To Remove Yourself From It

What Is The Realtime Spammers Blacklist?

The RSBL stands for the Realtime Spammers Blacklist.  The Blacklist was created as part of the ANTISPAM-UFRJ, which is the official anti-spam website of the Laborator for the Processing of Analog and Digital Signals (PADS/COPPE/UFRJ).  The ANTISPAM-UFRJ is a database that was created to keep the Mail Transport Agents (MTA) up to date with the hosts in the PADS and in others networks with the most recent information about open-relay hosts, spammers hosts, or dial up machines on the Internet.  This blacklist is currently “frozen”, but still returns results.

How Does The Realtime Spammers Blacklist Work?

The Realtime Spammers Blacklist is currently frozen.  However, the realtime lists are free for anyone who wants to utilize them.  While the Realtime Spammer Blacklist is frozen, the Organization strongly recommends users to use the LibAntispam service to filter out spam hostnames.  It’s a fast, easy way to block spam messages, viruses, or cyber attacks.

How Can I Remove Myself From The Realtime Spammers Blacklist?

Users can search to see if their IP Address is listed here.  The Realtime Spammers Blacklist allows users to request to be taken off the list.

1. Go to the website
2. Choose the option: Report an open-relay or Report a closed-relay
3. For the Open-relay, enter the IP number or the FQDN of the open relay host that you want to report.
4. For the Closed-relay, Please, enter ONLY the IP number of the relay host that you want to request to be removed from our databases:

Please note: The Open Relay Verificator Engine (ORVE) will verify if the hos is closed before removing it from the database.  The host must pass all tests to be removed.  

How do I reduce my risk of getting onto the Realtime Spammers Blacklist?

The best way to avoid getting listed on a blacklist is to engage in proper email practices such as...

• Verify all email addresses before attempting outreach
• Avoid sending unnecessary emails
• Avoid the use of spam words within your email drafts
• Keep your sending volume to a minimum (30-50 a day if your inbox has been warmed up with us for at least 30 days)

Related Terms:

Blacklist: An online database that aggregates email addresses and domains that have been reported on multiple occasions to be sending out spam or malicious content to others on a large scale. These blacklists are used as a reference by mail servers in order to determine how safe it is to accept messages coming from unknown domains and addresses.

IP Address: Internet Protocol is a unique address that identifies a device on the internet or a local network.  IP is the set of rules governing the format of data sent via the internet or local network.

Open Mail Relay: SMTP server that allows anyone to send email.