The abuse.ro Realtime Block List (RBL) is a public IP address blocklist (blacklist) that identifies and lists IP addresses considered probable sources of spam based on messages captured by its network of spamtraps.
The abuse.ro Realtime Block List (RBL) is an IP-based DNS blocklist that identifies IP addresses and network classes known for sending spam. It operates based on a policy of listing sources that send unsolicited email to its network of spamtraps, which are email addresses created specifically to attract spam. The last IP address in the email headers before the destination is the one that gets added to this blacklist.
Mail server administrators use this blocklist to help filter incoming email. It is important to note that abuse.ro itself does not block any emails; it only publishes the list of addresses. The decision to reject or filter messages from a listed IP rests entirely with the operators of the email servers who choose to use this particular blacklist.
An IP address can be listed under the following circumstances:
The blocklist is run by abuse.ro, which describes itself as a collection of classification and reputation databases for public IP addresses and web domains.
The delisting process from this blacklist is strictly manual. Before you request removal, you must ensure you have taken the necessary steps to stop the source of the spam. The request must come from the owner of the IP block, not the end user.
Before requesting delisting, you should:
Once the problem is fixed, the IP block owner must send an email to admin [@] abuse.ro with the subject line format: "Delist IP: [your.ip.address.here]". The abuse.ro team may ask for evidence that the spam has stopped before delisting the IP address. Delisting could be delayed if the operator continues to provide services to the spammer.
The impact of being on the abuse.ro Realtime Block List (RBL) is generally considered low. While any listing on a blacklist can cause email delivery problems, this specific list may not be as widely used as other major blocklists. Senders may experience some rejections or filtering, but it is less likely to cause a complete and widespread inability to deliver email.
Organization
Zone
Type
Impact
Delisting
Organization
Zone
Type
Impact
Delisting
Organization
Zone
Type
Impact
Delisting
19 resources
How effective are RBLs and blocklists for preventing spam in 2022?
How impactful are Abusix blacklisted IPs from a shared IP pool?
How to handle false positives from abuse.ro RBL in email deliverability monitoring?
What are the best and most trustworthy URL RBLs?
What impact does Abuse.ro have on email deliverability and which blocklists are most important to monitor?
What is the distinction between Abusix 'black' and 'black_css' abuse lists?