# Verify a single email
python src/email_verifier.py user@example.com

# Verify a list from a file
python src/email_verifier.py --file examples/sample_emails.txt

# Output results to JSON file
python src/email_verifier.py --file examples/sample_emails.txt --output results.json

# Skip SMTP checks (faster, syntax + MX only)
python src/email_verifier.py --file examples/sample_emails.txt --no-smtp

# CSV output format
python src/email_verifier.py --file examples/sample_emails.txt --format csv --output results.csv

{
  "email": "user@example.com",
  "status": "valid",
  "syntax_valid": true,
  "mx_found": true,
  "smtp_connectable": true,
  "mailbox_exists": true,
  "is_disposable": false,
  "is_role_address": false,
  "mx_records": ["example.com"],
  "smtp_response": "250 OK",
  "error": "",
  "checked_at": "2026-03-14T12:00:00+00:00"
}