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DEFAULT_LEGAL_FOOTER_LINES' email was "admin@mk360.de" — the same domain as the real send address, which read as a hardcoded real value in the preview rather than an obvious placeholder. Now "kontakt@musterfirma.de", matching "Musterstraße 12"'s already-fake spirit. Mirrors the same fix already made on the Payload backend's copy of this constant. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>