DMARC Monitoring is coming soon: collect and analyze DMARC and TLS-RPT reports in one place. Learn more
Blacklist Monitoring · S5H

Listed on S5H? Remove It With One Command

The S5H list, all.s5h.net, collects IPs that send spam to its honeypot addresses. Getting off it is about the fastest removal in the business.

Remove It From the Listed Server

Run one HTTP request from the listed IP itself, for example curl -4 http://www.usenix.org.uk/content/rblremove on that server. S5H delists the IP immediately. On a server with several addresses, make sure the request goes out from the listed one.

If That Doesn't Work

Use S5H's manual removal form with your email, the IP, why it was listed, and what you fixed. Replies can take a few days, and approved removals go through within 30 minutes.

Monitor It Instead

Stay Off It Next Time

If your IP hit S5H's honeypots once, it can again. Generator Labs checks your IPs against S5H and 150+ other data sources and alerts you by email, Slack, SMS, or webhook when a listing reappears. Free for your first host.

Listing detail with the data source and its delisting steps
Alert · Slack #mail-ops
203.0.113.25 listed on S5H
Delisting steps attached

Frequently Asked Questions

About S5H listings.

Still have questions? Our support team is ready to help. Contact Us
Is S5H removal free?

Yes.

How fast is removal?

Instant with the HTTP request; within 30 minutes of approval with the manual form.

Why was I listed?

Your IP sent spam to one of S5H's honeypot addresses.