PSBL Surriel
Passive Spam Block List — automatic IP listings based on spam-trap captures, no manual review.
- DNS zone
psbl.surriel.com- Published by
- Surriel.com
- Established
- 2003
- Scope
- IP
What it detects
IPs that have sent mail to PSBL's spam-trap addresses. Trap addresses are deliberately seeded; legitimate senders do not have them in their lists, so traps fire only on spam runs.
Listing categories
Single-tier list — listed IPs return 127.0.0.2. No category sub-codes; the listing exists or it doesn't.
How to check a listing yourself
Query the reversed IP at `psbl.surriel.com` or use PSBL's public lookup at https://psbl.org/listing.
How to get delisted
Self-service delist via the PSBL website is available 30 days after listing. Earlier delisting requires evidence the spam has stopped — typically configured email-deliverability, removed compromised account, fixed misconfigured forwarder. PSBL is fast to relist if the source is still active.
Other blacklists DomainCare monitors
- SURBL — Domain reputation list focused on URLs found in unsolicited mail. SURBL is one of the most widely deployed domain blocklists at receivers.
- URIBL — Real-time domain blacklist focused on URIs that appear in spam. Common at receivers using SpamAssassin and similar filters.
- SpamCop SCBL — SpamCop Blocking List — IP blacklist driven by reports submitted by mail recipients.
- DroneBL — IP blacklist focused on compromised hosts — drones, open proxies, brute-force attackers — rather than spam senders.