Listed on Team Cymru Bogons? How to get delisted
bogons.cymru.com
What a listing means
Team Cymru’s bogon list covers address space that should never appear on the internet: private, reserved and unallocated ranges. It is not a reputation list.
How removal works
A listing means the address is not routable public space. Check that you entered the right IP; there is nothing to delist.
Before you request removal
- Confirm the listing with ProbeKit’s blacklist check and note every list that shows the IP or domain.
- Find the cause: compromised mailbox passwords, malware on a device, an open relay or open proxy, a misbehaving web form, or sending to purchased or stale lists.
- Fix it, and make sure the IP has a proper reverse DNS (PTR) name and that SPF, DKIM and DMARC pass for your mail.
- Use the list operator’s removal process. Requesting removal before fixing the cause usually gets the IP relisted.
- Re-check after a day, and add a blacklist monitor so you hear about the next listing before your users do.
Check your IP or domain now
Type a domain, IP, email or URL and pick a check, or a prefix like Pick a check, or type a prefix like spf: · press / to search
Blacklist check · Reverse DNS · SMTP test · Guide: “550 5.7.1 … Spamhaus”