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Knowledge Base / Troubleshooting & Recovery

Understanding Invaluement blocklists

By Eric J · Updated March 4th, 2026 · Troubleshooting & Recovery

Invaluement operates three blocklists: InvaluementURI, InvaluementSIP, and InvaluementSIP/24, which are used in spam filter and protection products. These lists help identify and block spam by analyzing domains and IP addresses within spam emails.

How Does Invaluement Work?

Invaluement adds domains or IP addresses to their lists based on specific criteria:

  • InvaluementURI: Lists domains and IP addresses found in links within spam emails.
  • InvaluementSIP: Targets IP addresses that send a high percentage of spam.
  • InvaluementSIP/24: Blocks larger IP ranges where spam-sending patterns are detected through the other lists.

How Can You Get Removed from Invaluement's Blocklists?

To be removed from Invaluement's blocklists, the offending sender must take steps to mitigate the issue. Invaluement supports manual requests for delisting. For more details, visit Invaluement's website or their removal page.

How Can InboxAlly Help?

If you're concerned about being listed on a blocklist like Invaluement, InboxAlly offers tools to help manage and improve your email deliverability:

  • Spam Database Lookup: Use InboxAlly's Spam Database Lookup to check your IP and domain reputation status across major blacklists.
  • Domain Reports: Monitor your domain's reputation and authentication status with InboxAlly's Domain Reports.
  • Email Content Tester: Analyze your email content for spam triggers to improve inbox placement. Try the Email Content Tester.

Start a free trial of InboxAlly to improve your inbox placement and monitor your email deliverability effectively.

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