Email Validator#

Multi-layer email validation: syntax, DNS, disposable detection, typo correction.

Quick Start#

bash

# Validate a single email
python3 scripts/email_validate.py user@example.com

# Validate multiple emails
python3 scripts/email_validate.py user@gmail.com admin@company.org test@mailinator.com

# JSON output
python3 scripts/email_validate.py user@example.com --json

# Batch validate from file
python3 scripts/email_validate.py --file emails.txt

# Skip DNS checks (syntax + disposable only)
python3 scripts/email_validate.py user@example.com --no-dns

Validation Checks#

1. Syntax — RFC 5322 compliance (local part, domain, length limits)
2. MX Records — DNS lookup to verify the domain accepts email
3. Disposable Detection — Flags 80+ known throwaway email providers
4. Typo Suggestion — Catches common misspellings (gmial.com → gmail.com)

Flags#

• --json — Machine-readable JSON output
• --file, -f <path> — Read emails from file (one per line)
• --no-dns — Skip MX record checks
• --no-disposable — Skip disposable email check

Exit Codes#

• 0 — All emails valid
• 1 — One or more emails invalid