EmailShepherd put a coding question to both Claude and Codex on an architecture thing, and both gave two options.

EmailShepherd is a powerful drag-and-drop email builder that gives you complete control over your brand’s design system—without sacrificing speed or flexibility. Built for marketers, brands, and agencies, it empowers teams to create on-brand, high-quality emails faster than ever—no coding required. With EmailShepherd, developers define reusable components and brand-safe editing rules, ensuring every email stays visually consistent and compliant. Marketers can then build and customize emails with ease, all within the creative boundaries set by the brand. ✨ Key Features: • Fully customizable design system built by your developers • Lightning-fast email creation for marketers • Seamless integration with leading ESPs, including Klaviyo, Mailchimp, Braze, and more • ESP-agnostic personalization tags & conditional logic • AI-powered translation tools • API access for ultimate flexibility and automation Say goodbye to rigid email templates and hello to full creative freedom—with complete brand control. 🚀 Build faster. Stay on brand. Scale smarter.