> For the complete documentation index, see [llms.txt](https://wiki.lucysecurity.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.lucysecurity.com/application-reference/settings/submitted-email-settings/custom-rules-and-score-factors.md).
# Custom Rules & Score Factors
{% hint style="info" %}
Navigate to **Settings > Submitted Email Settings > Custom Rules**
{% endhint %}
### Custom Rules
Custom Rules enable the creation and storage of regular expressions (regex) to search through the bodies of reported emails. When an email matches a rule, it is assigned a predefined number of points.
**How It Works**
1. **Define Regex Patterns**: Create regex patterns that identify specific text within email bodies.
2. **Set Points**: Assign a point value to each regex pattern.
3. **Scan Emails**: LUCY scans reported emails for text matching the stored regex patterns.
4. **Assign Points**: Emails that match a regex pattern are assigned the corresponding points.
You can use an online tool like https://regexr.com/ to help you build regular expressions.
***
### Score Factors
{% hint style="info" %}
Navigate to **Settings > Submitted Email Settings > Score Factors**
{% endhint %}
These score factors are a multiplier that applies to each type of score. You can apply more or less weight to each type in order to fine-tune your results based on your organization's specific needs.
A value of 1 is neutral because the score will be multiplied by 1.
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