Email Validator

Straightforward email validation that checks syntax, DNS records, and filters out disposable addresses. Use it before sending campaigns or to clean up signup lists. Includes a batch processor for CSV files, which is the real value here since validating one-off emails is easy enough without a tool. Built on email-validator and dnspython, so you're getting proper RFC compliance checking and MX record verification. The disposable email detection will catch the obvious throwaway domains. Nothing fancy, but if you're running email campaigns and dealing with bounce rates, this handles the tedious validation work you'd otherwise script yourself.

skills.sh installs: 222
GitHub stars: 150
last updated: Aug 21, 2026

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Install

$ npx -y skills add guia-matthieu/clawfu-skills --skill email-validator --agent claude-code

Installs into .claude/skills of the current project.

Files

Email Validator

Validate email addresses and clean lists to improve deliverability and reduce bounces.

What Claude Does vs What You Decide

Claude Does	You Decide
Structures analysis frameworks	Metric definitions
Identifies patterns in data	Business interpretation
Creates visualization templates	Dashboard design
Suggests optimization areas	Action priorities
Calculates statistical measures	Decision thresholds

Dependencies

pip install email-validator dnspython click

Commands

python scripts/main.py validate email@example.com
python scripts/main.py batch emails.csv --column email --output clean.csv
python scripts/main.py clean emails.txt --remove-disposable