Outlook email triage software.
Native Microsoft 365 triage.
Outlook email triage built for teams and professionals. See which Outlook messages need attention first, review grounded replies, and track unanswered threads without replacing your Microsoft 365 setup.
// MICROSOFT PARTNER · INTEGRATED OAUTH · NATIVE SYNC
Works with your existing email
Keep your mailbox. Get help with the work.
Mailtwine is the underdog working behind the accounts you already use. No new address. No migration. No swapping one inbox for another. It sorts, drafts, routes, and follows up in the background, then asks for attention only when a decision still needs you.
Connect 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, or any standard IMAP mailbox with SMTP for sending. MCP-compatible clients connect over OAuth for mail search, summaries, draft suggestions, routing, and approval review.
AI assistant for Gmail & Workspace → AI assistant for Outlook →
Connect Microsoft mail your way
Use native Microsoft OAuth for a synchronized mailbox, work directly on Outlook on the web with the browser extension, or forward mail into Mailtwine. The paths can work together.
Native Microsoft sync
Authorize Outlook.com or Microsoft 365 through Microsoft OAuth. Drafts, replies, and triage actions stay in step with your real mailbox.
On Outlook on the web
Add triage, summaries, and drafting directly to the Outlook page already open in your browser.
Into the command center
Set up forwarding in Outlook's own settings and incoming mail lands in Mailtwine's queue: classified, prioritized, summarized, and ready to work.
From Microsoft sign-in to sorted
Choose Microsoft
Select Outlook.com or Microsoft 365 when connecting your mailbox in Mailtwine.
Authorize securely
Sign in with Microsoft and approve the OAuth connection. Mailtwine never receives your Microsoft password.
Triage in Mailtwine
Prioritize, summarize, route, and draft replies from the command center.
Approve
You review every action before it happens, and approved changes synchronize with the Microsoft mailbox.
Your Microsoft credentials stay with Microsoft.
Mailtwine uses Microsoft's OAuth consent flow instead of asking for your password. You can review or revoke access from your Microsoft account, and Microsoft 365 tenant administrators retain control through their consent policies.
Outlook triage, answered
Can Mailtwine connect to my Microsoft account? +
Do I need IT to approve an Outlook add-in? +
Does it work with the Outlook desktop app? +
Does Mailtwine send email without approval? +
Connect your Microsoft mailbox
Use secure Microsoft OAuth, the browser extension, or forwarding to start triaging Outlook and Microsoft 365.