2026 SaaS Email Infrastructure Dataset & Deliverability CLI (Resend, AWS SES, Postmark, Loops, SendGrid)

Verified 2026 pricing, overage, dedicated IP, and bounce-suspension dataset (CSV + JSON) comparing AWS SES (a la carte $0.10/1k vs default Essentials $0.16/1k), Resend (transactional vs contact-based broadcast pricing), Postmark, Loops.so ($49/mo unlimited sends), SendGrid (retired free tier + Pro IP rules), Brevo, and Customer.io. Includes two zero-dependency Node.js CLI tools: the Monthly Email Bill Simulator and the DNS/SPF/DMARC/DKIM Deliverability Auditor.