Ops & deliverability

• Related private/experiment repo: atherdon/newsletters
• Burner email providers list (also see historical gist michenriksen/8710649 — ⚠️ gist 404 when checked 2026-10-29; prefer wesbos list above)
• docker-sendy
• Google Apps CheckMX
• Postmark Spamcheck
• Sendy API
• Sendy forum: custom redirect after signup
• Sendy forum: email templates resources
• SSL note / Control Panel KB
• Zapier: Tweet new Sendy campaigns