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name: "Email Address Lookup" description: "Email validation, breach check, and associated account discovery" allowed-tools:

• src.tools.email_lookup

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Email Address Lookup

Purpose

Investigate email addresses for validation, security breach exposure, associated online accounts, and risk assessment for fraud prevention and due diligence.

When to Use

• Email address validation and verification
• Security breach exposure assessment
• Account takeover and credential stuffing risk analysis
• Due diligence on provided contact information
• Investigation of suspicious email communications
• Identity verification and authentication
• Discovery of associated online accounts and services
• Fraud prevention for email-based authentication

How to Use

The email lookup tool provides comprehensive email intelligence:

• Validation: Syntax validation, domain verification, deliverability check
• Breach Exposure: Known data breaches, credential leaks, password exposure
• Account Discovery: Associated social media, shopping, professional accounts
• Domain Analysis: Email provider, custom domain investigation
• Risk Assessment: Disposable email detection, fraud indicators
• Reputation: Spam history, blacklist status, trust indicators

Examples

Account security assessment:

CopyEmail: john.doe@company.com
Investigation: 3 known breaches, LinkedIn and Adobe data exposures
Risk: High - credentials likely compromised, recommend password reset

Business email verification:

CopyContact: info@newclient.com provided for partnership
Validation: Valid domain, corporate email server, established domain age
Assessment: Low risk - legitimate business communication

Fraud investigation:

CopySuspicious Email: temp123@10minutemail.com used in transaction
Analysis: Disposable email service, auto-expires, high fraud risk
Evidence: Consistent with fraudulent account creation patterns

Digital footprint analysis:

CopySubject: sarah.johnson@gmail.com in due diligence
Discovery: Associated Twitter, Facebook, LinkedIn accounts found
Intelligence: Cross-platform activity pattern analysis

Important Notes

• Email breach data should be handled sensitively and legally
• Disposable email services indicate higher fraud risk
• Corporate emails generally have higher trust levels than free providers
• Consider email domain age and reputation in risk assessment
• Some email providers have enhanced privacy protections
• Cross-reference email findings with other digital footprint data
• Be aware of GDPR and privacy laws when collecting email intelligence
• Email validation doesn't guarantee the email belongs to claimed owner
• Consider social engineering risks when contacting discovered accounts