One CLI that checks a cold-email campaign on both axes before you send: SPF/DKIM/DMARC/MX/PTR/DNSBL deliverability, AND a copy lint against CAN-SPAM, GDPR, PECR, LSSI-CE and CASL. Existing OSS tools do DNS only. Exit codes for CI, JSON and SARIF output. Not legal advice.
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Updated
Sep 1, 2026 - Python