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How to submit Cloudmark remediation requests using email fingerprint data and headers?

Summary

Submitting a remediation request to Cloudmark for a blocklist removal often requires specific data, particularly email fingerprint information and full message headers. This is crucial for Cloudmark's system to accurately identify the campaign or email characteristics that triggered the block, distinguishing it from general IP or domain blocklistings. Understanding how to extract and provide this data is key to a successful remediation process.

What email marketers say

Email marketers often face challenges when their emails are blocked by Cloudmark, especially when the issue stems from a 'fingerprint' rather than a traditional IP block. Their experiences highlight the importance of understanding the specific type of block and providing the correct data to Cloudmark for successful remediation. Marketers frequently rely on their email service provider's diagnostic tools to gather the necessary header and fingerprint information.

Marketer view

Email marketer from Email Geeks sought help because the only information available from their console was the x-authority-analysis header, and the Cloudmark form requested an SMTP 5xx response. This indicates a challenge in aligning available diagnostic data with required submission fields.

03 Jun 2019 - Email Geeks

Marketer view

Email marketer from Email Geeks confirmed having only full headers from their console and hoped this would be enough for a successful remediation. This reflects a common sentiment among marketers who rely on their ESP's data exports.

03 Jun 2019 - Email Geeks

What the experts say

Experts emphasize the precise nature of Cloudmark's fingerprinting technology, which analyzes email content and patterns rather than just IP addresses or domains. They highlight that remediation requires a deep understanding of email headers, particularly the x-authority-analysis data, to accurately communicate the issue to Cloudmark for a targeted solution. They stress the importance of following specific reporting guidelines to ensure efficient resolution.

Expert view

Deliverability expert from SpamResource explains that Cloudmark's fingerprinting system primarily focuses on message content and patterns, not just IP or domain reputation. This means a block can occur even if your IP is clean, due to specific words, formatting, or sending behaviors.

10 Aug 2023 - SpamResource

Expert view

Email deliverability consultant from Word to the Wise notes that x-cloudmark-filter or x-authority-analysis headers are crucial for diagnosing Cloudmark issues. These headers contain proprietary information that allows Cloudmark to understand why a message was flagged, providing valuable clues for remediation.

25 Sep 2023 - Word to the Wise

What the documentation says

Official documentation and support resources from Cloudmark and related service providers detail the specific requirements for submitting remediation requests. They often differentiate between IP-based blocklistings (blacklistings) and content-based fingerprinting, providing distinct processes for each. The key is to supply comprehensive email headers and adhere to their guidelines for accurate and timely processing.

Technical article

Rackspace Technology Documentation states that senders blocked by Cloudmark Sender Intelligence (CSI) must use the https://csi.cloudmark.com/reset-request link to request remediation. This indicates a specific online portal is the primary method for blocklist removal requests.

17 Jul 2025 - Rackspace Technology Documentation

Technical article

Proofpoint Essentials documentation, when discussing the addition of Cloudmark Sender Intelligence, instructs users to open a CSI request ticket first via the CSI Removal Request link. It specifies that upon creation, a reference ID should be provided. This reference ID is crucial for tracking the remediation progress.

17 Jul 2025 - Vircom Support

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