Catch blocklist listings before they hurt your deliverability
A listing on a major email blocklist means mailbox providers start blocking or junking your mail. SpamCipher watches your sending domains and IPs across the blocklists that matter and alerts you the moment you are listed, so you can fix the cause and request delisting fast.
Monitor blacklists
Find out you are listed before your customers do
A blocklist listing rarely announces itself. Your open rates dip, replies dry up, and by the time you notice the damage is done. SpamCipher checks the blocklists for you, around the clock.
- Add your domains and IPs. Tell SpamCipher which sending domains and IP addresses to keep an eye on.
- We watch the blocklists. Each asset is checked continuously against the major email blocklists, with no setup on your end.
- Get alerted and start delisting. The moment something is listed, you hear about it with the reason and next steps.
- Spamhaus (SBL, XBL, DBL): the most widely used blocklists
- Barracuda Reputation Block List: reputation based IP listings
- SURBL: domains found in spam message bodies
- SpamCop: listings driven by spam reports
- URI blocklists: links and domains flagged in your mail
From blind spot to early warning
Add your assets, let SpamCipher watch the blocklists, and act the moment something changes.
Add your assets
Enter the sending domains and IP addresses you want monitored. SpamCipher tracks as many as you need.
We watch the blocklists
Every asset is checked continuously against Spamhaus, Barracuda, SURBL, SpamCop, and URI blocklists.
Act on alerts
When a listing appears, you get the blocklist, the likely reason, and the steps to request delisting.
Never get caught off guard by a listing
Start monitoring your domains and IPs free, no credit card required.
Think you might already be on a blocklist?
Find out right now. SpamCipher checks your domains and IPs against the major blocklists and shows you exactly where you stand, with the reason behind any listing.
From there you get clear delisting guidance for each blocklist, so you can fix the underlying cause and submit a removal request instead of guessing.
Get alerted your way and monitor at scale
Choose how you hear about listings. SpamCipher sends email alerts the moment a domain or IP is listed, and webhooks so you can route events straight into Slack, your helpdesk, or your own systems.
Monitoring dozens of domains or a whole IP range? The SpamCipher API lets you add, remove, and check assets programmatically, so blocklist monitoring scales with your sending.
Continuous checks mean you find out early, every time, without anyone watching a dashboard.
Explore the APIHow to stay off the blocklists for good
Getting delisted is only half the job. Listings usually trace back to a root cause: a spike in bounces, a compromised account, weak authentication, or stale contacts that turned into complaints. Fix the cause and the delisting sticks.
Treat monitoring as a habit, not a fire drill. Keep your authentication tight, validate your lists, watch your bounce and complaint rates, and let SpamCipher flag any listing the instant it happens. Your sender reputation and inbox placement both hold steady.
