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CHANGELOG/25 AUGUST 2026

Agent Inbox Compose Experience & Automated KumoMTA TLS

Inbox
Infrastructure
Frontend
Security

Enhanced AI email composing with live tone selection and undo-send countdowns, unified mailbox routing, automated KumoMTA Let's Encrypt TLS certificates, and the launch of the backend deliverability test suite.

AGENT INBOX & COMPOSE

  • Undo send countdown. Added EmailSentToast with configurable delay timer and animated navigation to sent logs.
  • AI prompt popover & subject generator. Context-aware AI prompt assistant with tone selection and heuristic subject line cleaning.
  • Centralized folder routing. Migrated mailbox routing to URL search parameters (?folder=...) for instant, cache-friendly view switching.
  • Redesigned mailbox rail. Streamlined mailbox rail layout with modal-based creation flow and copy mailbox address shortcut.
  • Onboarding keyboard shortcuts. Added animated progress badges and verification shortcuts to the setup banner.

INFRASTRUCTURE & SECURITY

  • Automated KumoMTA TLS. Automated Let's Encrypt TLS certificate provisioning with Traefik integration and multi-path ACME discovery.
  • Outbound domain TLS mode. Enforced domain-specific TLS cipher requirements for outbound SMTP transport.
  • Production SMTP verification. Added automated test scripts (test-smtp-prod.ts) to validate relay handshakes.

DELIVERABILITY TEST ENGINE

  • Backend deliverability test suite. Sub-addressing receiver architecture with DNSBL verification and S3 attachment retrieval.
  • LoadingDot matrix animations. Smooth micro-UI feedback animations for long-running asynchronous test operations.
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