Product Roadmap
What we've shipped and what's next. Updated as we build.
April 2026
Google & Outlook Mailboxes
Native OAuth-based connection to Google Workspace and Microsoft 365 mailboxes. No third-party relay needed.
SMTP/IMAP Support
Connect any mailbox via raw SMTP/IMAP credentials. Useful for custom domains and self-hosted mail servers.
Lemlist Integration
Webhook-based integration with Lemlist. Replies flow into Underfive automatically on new lead response.
Woodpecker Integration
Native Woodpecker connector. Auto-configures webhooks on API key entry — same flow as SmartLead/Instantly.
Apollo, Snov.io, Hunter
Expanding outbound tool coverage. Same API-key-in, webhook-out pattern. Drop-in setup.
January 2026
Multi-Calendar per Agent
Bind multiple Google Calendar or Outlook calendars to a single inbox agent. Checks availability across all before proposing a slot.
December 2025
Leads Table
Sortable, filterable table of all leads across workspaces. Shows classification, reply count, and meeting status at a glance.
MasterInbox
Unified thread view across all connected tools and senders. One place to read every conversation your agents are handling.
November 2025
Inbox Agent Creation Revamp
Rebuilt the agent setup flow from scratch. Fewer steps, better defaults, knowledge base upload baked in.
Super Inbox Agent
One agent handles your entire workspace — no trigger keywords required. Classifies intent, replies, and books across all senders.
Public API
REST API for agents, leads, threads, and analytics. Authenticate with workspace-scoped API keys. Full docs at /docs.
October 2025
Automated Follow-ups
If a lead goes quiet, the agent sends a follow-up after a configurable delay. Keeps threads alive without manual intervention.
September 2025
Heyreach Integration
LinkedIn outreach via Heyreach. Webhook fires on new reply, agent processes and responds through the platform.
August 2025
Email Bison Integration
First cold email platform integration. API key + auto-webhook setup. Replies ingested and classified in real time.
Slack Notifications
Real-time Slack alerts when agents reply, book meetings, or flag leads that need human review.
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