96.5% deliverability, 42.7% opens: why you can't vibe code a newsletter platform
marclou · x · 2026-10-22
marclou argues "you can't vibe code a newsletter platform and expect good deliverability," backing it up with his own email metrics: 13,183 sends with 96.5% delivered, 42.7% opened, 2.9% clicked, and 0% complaints. His send-time chart shows the open peak at Wednesday 9 AM, with half of opens within 9 hours. The point: email infrastructure details like deliverability can't be faked with AI-generated code — they require real engineering.
Related event: Developer Debunks Vibe Coding for Newsletter Email Deliverability(2 posts)→
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