What is abuse.ro?
Still have a question, spotted an error, or have a better explanation or a source we should cite?
rbl.abuse.ro checks IPs and uribl.abuse.ro checks domains.
What the operator says
"a list of IP addresses and domains that we consider probable sources of spam" abuse.ro, read 1 Nov 2026.
What it really measures
Mail caught by its spam traps. The number the lookup returns says which kind:
| List | Number | Meaning |
|---|---|---|
rbl | 127.0.0.2 | IP sending spam |
rbl | 127.0.0.3 | IP abused or infected |
rbl | 127.0.0.4 | A whole network range sending spam |
uribl | 127.0.0.2 | Domain heavily advertised in spam |
uribl | 127.0.0.4 | Domain advertised in spam |
uribl | 127.0.0.9 | Dynamic DNS domain, listed because they are easy to abuse |
Why you might be there
Your IP's mail reached one of those traps, or a neighbouring IP looks related. uribl is about a domain inside the mail, not the sender, and that includes links behind shorteners.
What to think about
If you send through a shared service, go to your email provider first. On a shared server, the operator says it may allow time to fix the problem before listing.
How to get off it
Check the IP or domain at rbl.abuse.ro, and if an IP is listed, ask for delisting with a reason. A contact email is optional. Do not ask it to delist an email address, since it lists IPs and domains only. Its only contact is admin at abuse.ro, and it says it rarely answers anyone who is not the owner.
Want a hand getting this delisted? Here is how to write to a list's operator, or ask a person on our free SOS Hotline. Tell us the list and the IP or domain, and we reply within 48 to 72 hours.
A separate job: cleaning your list does not remove a listing. If you also want to know who on your list is safe to send to, clean your first 1,000 free.
The most useful email questions, once a month
One email a month. New questions worth reading, real deliverability changes (Gmail and Outlook updates, etc.), and any tool or report that landed since the last issue. No fluff, no upsell.
Contributors
Who worked on this answer
Every name links to their profile. Every company links to their site. Real people, real accountability.