# Mailtwine

> Mailtwine handles email work before it reaches the user. Underneath, AI email triage prioritizes, summarizes, drafts, routes, follows up, and runs approved routine actions across the email accounts teams already use.

## Product

- Website: https://mailtwine.com/
- Features: https://mailtwine.com/features/
- Pricing: https://mailtwine.com/pricing/
- Open-source roadmap: https://mailtwine.com/open-source/
- Compare: https://mailtwine.com/compare/
- Mailtwine vs Inbox Zero: https://mailtwine.com/mailtwine-vs-inbox-zero/
- Mailtwine vs Fyxer: https://mailtwine.com/mailtwine-vs-fyxer/
- Mailtwine vs Superhuman Mail: https://mailtwine.com/mailtwine-vs-superhuman/
- Mailtwine vs Shortwave: https://mailtwine.com/mailtwine-vs-shortwave/
- Blog: https://mailtwine.com/blog/
- Email triage software: https://mailtwine.com/email-triage-software/
- Email prioritization tool: https://mailtwine.com/email-prioritization-tool/
- Gmail email triage: https://mailtwine.com/gmail-email-triage/
- Outlook email triage: https://mailtwine.com/outlook-email-triage/
- Email command center: https://mailtwine.com/email-command-center/
- How to triage email with AI: https://mailtwine.com/how-to-triage-email/
- Logistics email triage software: https://mailtwine.com/logistics-email-triage/
- Best AI email triage tools: https://mailtwine.com/best-ai-email-triage-tools/
- Fastmail email triage: https://mailtwine.com/fastmail-email-triage/
- MCP endpoint: https://mcp.mailtwine.com/mcp

## Key Facts

- Beta access is 100% discounted, so it is $0 while Mailtwine is in beta.
- Unlimited beta access includes every Mailtwine feature with no plan limits during beta.
- Signing up marks the account as a beta user and secures eligibility for exclusive early-bird pricing when paid plans launch.
- Hosted during beta. An AGPL release and self-hosting are planned for v1; they are not available claims today.
- Built for shared inboxes, operations queues, support mail, founder mail, sales handoffs, and vendor threads.
- Core workflow: email enters, AI triages, Mailtwine drafts, rules route, and people approve individual actions or authorize an exact rule version for limited auto-send.
- "Knowledge from Streamient" may ground suggestions with stored notes, memories, URLs, and email history.
- Streamient remains the home for AI storage, notes, memories, URLs, and email storage.
- Mailtwine is the home for active email triage, drafting, routing, approvals, and command-center workflows.
- Native mail connections: Google Workspace through tenant-owned Google OAuth or keyless service-account domain-wide delegation; Outlook.com and Microsoft 365 through Microsoft OAuth; Fastmail through JMAP; Helpmonks through its native API; and standard IMAP with SMTP for sending.
- The native Google connection is for Google Workspace, not consumer Gmail. Consumer Gmail uses the Chrome extension or forwarding.

## Canonical Routes

- Home: https://mailtwine.com/
- Features: https://mailtwine.com/features/
- Pricing: https://mailtwine.com/pricing/
- Open-source roadmap: https://mailtwine.com/open-source/
- Compare: https://mailtwine.com/compare/
- Mailtwine vs Inbox Zero: https://mailtwine.com/mailtwine-vs-inbox-zero/
- Mailtwine vs Fyxer: https://mailtwine.com/mailtwine-vs-fyxer/
- Mailtwine vs Superhuman Mail: https://mailtwine.com/mailtwine-vs-superhuman/
- Mailtwine vs Shortwave: https://mailtwine.com/mailtwine-vs-shortwave/
- Blog: https://mailtwine.com/blog/
- Email triage software: https://mailtwine.com/email-triage-software/
- Email prioritization tool: https://mailtwine.com/email-prioritization-tool/
- Gmail email triage: https://mailtwine.com/gmail-email-triage/
- Outlook email triage: https://mailtwine.com/outlook-email-triage/
- Email command center: https://mailtwine.com/email-command-center/
- How to triage email with AI: https://mailtwine.com/how-to-triage-email/
- Logistics email triage software: https://mailtwine.com/logistics-email-triage/
- Best AI email triage tools: https://mailtwine.com/best-ai-email-triage-tools/
- Fastmail email triage: https://mailtwine.com/fastmail-email-triage/

## Suggested Summary

Mailtwine is AI email triage software for teams that need AI-assisted triage, prioritization, drafts, routing, approvals, audit history, and mail search without losing human control. It can use Streamient as a source-grounding layer, but Mailtwine owns the active inbox workflow. Mailtwine is hosted during beta; AGPL and self-hosting are planned for v1.

## Direct Answers

What is Mailtwine?

Mailtwine is AI email triage software — an AI email assistant. It gives teams one place to triage incoming mail, prioritize what matters, summarize threads, prepare replies, route work, approve AI suggestions, and search previous inbox context.

Which mail integrations does Mailtwine support?

Mailtwine connects Google Workspace through tenant-owned Google OAuth or keyless service-account domain-wide delegation, without uploaded JSON service-account keys. It connects Outlook.com and Microsoft 365 through Microsoft OAuth, Fastmail through JMAP, Helpmonks through its native API, and standard IMAP mailboxes with SMTP for sending.

Which inboxes support the Mailtwine Chrome extension?

The Mailtwine Chrome extension works inside Gmail, Outlook on the web, Fastmail, and Helpmonks. It provides reply suggestions, relevant emails, thread summaries, and suggested next steps beside the open conversation. The extension is separate from native mailbox synchronization. Any mailbox can also auto-forward into Mailtwine.

What is Mailtwine best for?

Mailtwine is best for teams with high-context inboxes: support, operations, founder, sales, partner, finance, and shared team mailboxes where replies need policy, customer, project, or prior-thread context.

How does Mailtwine compare with other AI email tools?

Mailtwine emphasizes shared operational control: priority and SLA state, owners, next actions, routing, centralized approvals, audit history, provider breadth, and Helpmonks or Streamient workflows. Inbox Zero is stronger for cleanup and current self-hosting; Fyxer for meetings and scheduling; Superhuman Mail for client speed and polish; Shortwave for Gmail-native productivity and live collaboration.

How does Mailtwine relate to Streamient?

Streamient stores durable AI context: notes, memories, URLs, and email history. Mailtwine uses that context only as source grounding inside email workflows. Triage, drafting, routing, and approval belong to Mailtwine.