SpamCop — Check, Delist & Monitor
Check if you're listed on SpamCop. Listings auto-expire within 24 hours once spam reports stop. Monitor your IP reputation automatically.
Impact & Usage
Used by some ISPs and organizations but major providers like Gmail and Yahoo use proprietary systems.
Typical users: ISPs, organizations, and mail servers using third-party DNSBLs; major providers (Gmail, Yahoo) rely on proprietary systems instead
What Gets You Listed
Listed when spam reports from users and spamtraps exceed thresholds; multiple reports required with failsafes to prevent false positives
How to Get Delisted
- Visit spamcop.net/bl.shtml and enter your IP address to check your listing status.
- Identify the root cause — review your mail server logs for compromised accounts, forwarding loops, or sudden volume spikes.
- Fix the underlying issue. SpamCop listings auto-expire within 24 hours once reports stop, so there is no manual delisting form.
- Monitor your IP with mxio Blacklist Check to confirm the listing has cleared and watch for recurrence.
Expected Timeline
24 hours (automatic)
Auto-delist: Automatic delisting 24 hours after reports stop; repeat listings increase block duration
Common Causes
- Email forwarding setups that relay spam to SpamCop reporter addresses
- Compromised user accounts sending spam through your mail server
- Mailing list traffic that generates user complaints
- Shared hosting IP where another tenant is sending spam
Prevention Tips
- Audit email forwarding rules — forwarding is the most common cause of false SpamCop listings
- Implement SRS (Sender Rewriting Scheme) on forwarding servers to avoid SPF failures on forwarded mail
- Monitor outbound email volume for unexpected spikes
- Use dedicated sending IPs to isolate your reputation from shared infrastructure
Overview
SpamCop is operated by Cisco and has been one of the longest-running email blacklists on the internet. It uses a combination of user-submitted spam reports and spamtrap hits to identify sending IPs associated with unsolicited mail. Multiple reports from different sources are required before an IP is listed, and the system includes safeguards against single-reporter abuse.
The key characteristic of SpamCop is automatic delisting. Once spam reports stop arriving for your IP, the listing expires within 24 hours. There is no manual removal process and no form to submit — you fix the problem and wait. Repeat offenders face progressively longer listing durations.
SpamCop is particularly notorious for false positives caused by email forwarding. When a mail server forwards spam to a SpamCop reporter's address, the forwarding server's IP gets reported instead of the original spammer. This is a systemic problem with forwarding architectures and not a flaw in SpamCop's detection. If your server forwards mail, implementing SRS (Sender Rewriting Scheme) and filtering spam before forwarding can prevent these listings.
While SpamCop carries moderate weight — it is referenced by many ISPs and third-party spam filters — the major freemail providers (Gmail, Yahoo, Outlook) rely on their own proprietary reputation systems rather than SpamCop directly.
Monitor Your Blacklist Status
Get alerted the moment your IP or domain appears on a blacklist. Catch listings early, before they impact deliverability.
Set Up MonitoringRelated Blacklists
Check if you're listed on Barracuda BRBL. Manual removal via the BRBL form, typically processed within 12-24 hours. Monitor your IP reputation automatically.
Check if you're listed on SpamRats DYNA. Delisting requires valid forward-confirmed reverse DNS. Monitor your IP reputation automatically.
Check if you're listed on 0spam DNSBL. Auto-delists within 24 hours, or request one free manual removal every 3 hours. Monitor your IP reputation automatically.
Check if you're listed on Invaluement DNSBL. Targets snowshoe spam and stealthy bulk senders. Free lookup tier. Used by MailRoute and enterprise filters.