Email Blacklist Checker
Pricing
from $10.00 / 1,000 domain or ip checkeds
Email Blacklist Checker
Check domains and mail server IPs against email blocklists (SpamCop, Mailspike, PSBL, UCEPROTECT, DroneBL, SpamRATS, Spamhaus with your key). Finds a domain's mail IPs automatically and tells you exactly how to get delisted.
Pricing
from $10.00 / 1,000 domain or ip checkeds
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0.0
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Developer
Cobalt Relay
Maintained by CommunityActor stats
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Bookmarked
2
Total users
1
Monthly active users
4 days ago
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Find out whether your domain or mail server is on an email blocklist, and exactly how to get off it.
Give it a domain and it finds your real mail servers automatically from MX and SPF records, then checks every IP against the major blocklists. Give it an IP and it checks that directly. Check one domain or a thousand in one run.
What makes it different
- Finds the right IPs for you. You don't need to know your mail server's IP; just enter the domain.
- Knows shared servers. If your mail runs on Microsoft 365, Google Workspace, GoDaddy and similar, a listing on their shared servers is their problem, not yours. The report says so instead of alarming you.
- No false "clean" results. Before checking, it runs a test lookup on every blocklist. Lists that don't answer are reported as not checked, never as clean. Refusal codes (like Spamhaus's
127.255.255.254) are never mistaken for listings. - Tells you how to fix it. Every listing comes with what it means, how serious it is, and the removal page.
Blocklists checked
| Blocklist | Checks | Impact |
|---|---|---|
| Spamhaus ZEN (SBL, XBL, PBL) | IPs | High (with your free key) |
| Spamhaus DBL | Domains | High (with your free key) |
| SpamCop | IPs | Medium |
| Mailspike | IPs | Medium |
| PSBL | IPs | Low |
| UCEPROTECT Level 1 | IPs | Low |
| DroneBL | IPs | Low |
| Backscatterer | IPs | Low |
About Spamhaus
Spamhaus is the blocklist most mailbox providers use, but it refuses lookups from cloud servers (including this one) on its free public mirrors. Get a free Data Query Service (DQS) key from Spamhaus and paste it into the input; the Actor will then include Spamhaus ZEN and DBL. Without a key the report tells you Spamhaus wasn't checked.
Barracuda's list isn't included because it only answers DNS servers registered with Barracuda.
Input
| Field | Description |
|---|---|
| Domains or IPs | One per line. Email addresses and URLs are accepted. |
| Spamhaus DQS key | Optional, stored as a secret. Adds Spamhaus ZEN and DBL. |
| Blocklists | Choose which free lists to check (default: all). |
| Extra blocklist zones | Advanced: add any other IP blocklist you're allowed to query. |
Output
- Readable report (HTML): a status for every domain, every listed IP, and a "What to do" list with removal links.
- Results dataset: one row per domain/IP with status and listings, ready for CSV/Excel export.
- Full details (JSON): every check against every list.
Statuses
| Status | Meaning |
|---|---|
| Clean | No listings on any list that answered. |
| Listed | Your own mail server or domain is listed. Act on it. |
| Provider IP listed | A shared Microsoft/Google/etc. server is listed. The provider handles it. |
| Minor issues | Only policy listings, e.g. Spamhaus PBL on a residential IP, or missing reverse DNS. |
| Not checked | No blocklist answered for this target. |
Monitor automatically
Schedule the Actor daily or weekly on Apify and connect an integration (email, Slack, Make, Zapier, n8n) to get alerted the moment one of your domains or clients is listed. MSPs can check all client domains in one run.
Pricing
Pay per domain or IP checked. No subscription.
