> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/email-marked-as-spam-and-bulk-based-on-spam-confidence-level-and-bulk-complaint-level-values.md).
# Email marked as spam and bulk based on Spam Confidence Level and Bulk Complaint Level values
### Synopsis
| Field | Value |
| -------------------- | -------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | N/A (single event) |
| Deduplication Period | 1 Day |
| Required Data | Microsoft 365 Emails |
| Detection Modules | Email |
| Detector Tags | Spam |
| ATT\&CK Tactic | Reconnaissance (TA0043), Initial Access (TA0001) |
| ATT\&CK Technique | Phishing for Information (T1598), Phishing (T1566) |
| Severity | Informational |
### Description
The Spam Confidence Level (SCL) and Bulk Complaint Level (BCL) values, detected in the email's antispam headers, indicate that a message is more likely to be spam.
### Attacker's Goals
Achieve financial gain, distribute malware, or phish for sensitive information through mass unsolicited emails.
### Investigative actions
* Examine email headers to trace origins and check for signs of spoofing.
* Analyze the email content for spam indicators like suspicious links and aggressive marketing language.
* Monitor further actions taken, such as file downloads or access to potentially malicious links.
### Variations
Email with high Spam Confidence Level and Bulk Complaint Level values
**Synopsis**
| Field | Value |
| ----------------- | -------------------------------------------------- |
| ATT\&CK Tactic | Reconnaissance (TA0043), Initial Access (TA0001) |
| ATT\&CK Technique | Phishing for Information (T1598), Phishing (T1566) |
| Severity | Informational |
**Description**
The Spam Confidence Level (SCL) and Bulk Complaint Level (BCL) values, detected in the email's antispam headers, indicate that a message is more likely to be spam.
**Attacker's Goals**
Achieve financial gain, distribute malware, or phish for sensitive information through mass unsolicited emails.
**Investigative actions**
* Examine email headers to trace origins and check for signs of spoofing.
* Analyze the email content for spam indicators like suspicious links and aggressive marketing language.
* Monitor further actions taken, such as file downloads or access to potentially malicious links.
Email with high Spam Confidence Level or Bulk Complaint Level values
**Synopsis**
| Field | Value |
| ----------------- | -------------------------------------------------- |
| ATT\&CK Tactic | Reconnaissance (TA0043), Initial Access (TA0001) |
| ATT\&CK Technique | Phishing for Information (T1598), Phishing (T1566) |
| Severity | Informational |
**Description**
The Spam Confidence Level (SCL) and Bulk Complaint Level (BCL) values, detected in the email's antispam headers, indicate that a message is more likely to be spam.
**Attacker's Goals**
Achieve financial gain, distribute malware, or phish for sensitive information through mass unsolicited emails.
**Investigative actions**
* Examine email headers to trace origins and check for signs of spoofing.
* Analyze the email content for spam indicators like suspicious links and aggressive marketing language.
* Monitor further actions taken, such as file downloads or access to potentially malicious links.
Email with medium Spam Confidence Level and Bulk Complaint Level values
**Synopsis**
| Field | Value |
| ----------------- | -------------------------------------------------- |
| ATT\&CK Tactic | Reconnaissance (TA0043), Initial Access (TA0001) |
| ATT\&CK Technique | Phishing for Information (T1598), Phishing (T1566) |
| Severity | Informational |
**Description**
The Spam Confidence Level (SCL) and Bulk Complaint Level (BCL) values, detected in the email's antispam headers, indicate that a message is more likely to be spam.
**Attacker's Goals**
Achieve financial gain, distribute malware, or phish for sensitive information through mass unsolicited emails.
**Investigative actions**
* Examine email headers to trace origins and check for signs of spoofing.
* Analyze the email content for spam indicators like suspicious links and aggressive marketing language.
* Monitor further actions taken, such as file downloads or access to potentially malicious links.
Email with medium Spam Confidence Level or Bulk Complaint Level values
**Synopsis**
| Field | Value |
| ----------------- | -------------------------------------------------- |
| ATT\&CK Tactic | Reconnaissance (TA0043), Initial Access (TA0001) |
| ATT\&CK Technique | Phishing for Information (T1598), Phishing (T1566) |
| Severity | Informational |
**Description**
The Spam Confidence Level (SCL) and Bulk Complaint Level (BCL) values, detected in the email's antispam headers, indicate that a message is more likely to be spam.
**Attacker's Goals**
Achieve financial gain, distribute malware, or phish for sensitive information through mass unsolicited emails.
**Investigative actions**
* Examine email headers to trace origins and check for signs of spoofing.
* Analyze the email content for spam indicators like suspicious links and aggressive marketing language.
* Monitor further actions taken, such as file downloads or access to potentially malicious links.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/email-marked-as-spam-and-bulk-based-on-spam-confidence-level-and-bulk-complaint-level-values.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.