IP checkScore any IP for VPN, proxy, Tor, datacenter and abuse.
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Report an IPSend abuse with evidence to the shared database.
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Disposable email domains

DocumentationQuickstart, endpoints and response fields.
PartnersFirewalls, drop-in endpoints, open data and programs.
Migrate in one lineKeep your AbuseIPDB, IPQualityScore or ipinfo code.
OpenAPI specA machine-readable description of the API.

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$ curl https://api.ffraud.com/public/ip/185.220.101.34

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Open the quickstart

Open data hubEvery dataset, the download commands and the MIT licence in one place.
Malicious IP database1.5M confirmed abusive IPs, scored and categorised.
Disposable email domains222.8K throwaway mail domains in one list.
Open data docsFile formats, fields and how to load them.

Rebuilt every 30 minutes

1.5M

flagged IPs in the current build, made 11 October 2026, 06:30 UTC.

FFraud on GitHub

Threat signatureMediumAbuse

mail_abuse

IPs abusing SMTP/IMAP mail servers through spam delivery, open-relay exploitation, or mail-server attacks.

Related signatures

spamserver_abuse

Malicious IP database How the score is built IP reputation check

Check an IP for this and every other signature.

FFraud returns the exact threat tags on any IP, free and without a key. The confirmed addresses, with their worst category, are also on GitHub as open data.

Check an IP See the API