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IP blacklist ยท ImproWare

ImproWare Spam RBL lookup and removal

Swiss ISP list of IPs that sent spam to its customers. Check your IP below, then follow the removal steps if it is listed.

Checks run by DNS only. Nothing is sent from or to your domain.

How to get removed from ImproWare Spam RBL

ImproWare Spam RBL removes entries automatically once the activity stops. There is no form to speed it up.

  1. 1 Find the cause on the sending host: a compromised mailbox or script, an open relay, a missing or generic PTR record, a sudden volume spike or a stale list hitting spam traps.
  2. 2 Fix the cause before asking for removal. A list that relists you quickly usually takes longer to remove you the second time.
  3. 3 No removal request is needed: the entry expires automatically once the activity stops.
  4. 4 Re-check the IP address here after the next zone update to confirm the listing is gone. Monitoring alerts you if it comes back.

ImproWare Spam RBL at a glance

OperatorImproWare
DNS zonespamrbl.imp.ch
ListsIP addresses
Impact on deliveryLow
RemovalExpires on its own
Removal pageantispam.imp.ch
IPv6IPv4 only

Frequently asked questions

How do I check if I am listed on ImproWare Spam RBL?

Enter your sending IP in the check box on this page. We query spamrbl.imp.ch by DNS and show the result with the return code and what it means.

How do I get removed from ImproWare Spam RBL?

ImproWare Spam RBL removes entries automatically once the activity stops. There is no form to speed it up.