Message anyone at work. No phone number. No new password.
Inlook is as simple as the messaging apps on your phone, except people reach you at your email address and you sign in with Microsoft. Only the verified owner of an address can ever read what's sent to it.
Works with work, school and personal Microsoft accounts.
How it works
Everyone you work with already has an address
There's no number to swap and nothing to install. If you know someone's email address, you can reach them on Inlook.
- 1
Sign in with Microsoft
Use the account you already have for work, school or Outlook.com. Microsoft confirms which email addresses are yours.
- 2
Write to any email address
Subject, To, Cc and Bcc, just like email. Reply, reply all and forward keep everyone in one thread.
- 3
They read it when they arrive
Someone not on Inlook yet? Your message is held for their address and appears the first time they sign in.
Why Inlook
The ease of a messaging app, with the identity of your work account
Safe by design
Your Microsoft sign-in is the only key
Inlook doesn't trust names, display settings or what an email claims. It trusts the account Microsoft signed you in to.
Verified owners only
A message sent to an address opens only for the person Microsoft confirms owns it.
Bcc stays private
Only the sender sees who was Bcc'd. People added later see only what was sent to them.
We never see your password
Microsoft handles sign-in. Inlook asks only for your name and email address.
Ready for your IT team
Admins can approve Inlook once for the whole organisation in Microsoft Entra.
When email is down
Keep working through an Outlook outage
Inlook runs separately from your mailbox, so when Outlook stops loading your team can carry on, using the same addresses everyone already knows.
- Sign-in sessions last 30 days, so you're ready before an outage starts
- Reach colleagues and customers by their usual email address
- Coming soon: copy every conversation back into Outlook once it recovers
Copy back to Outlook
Coming soon
Turn it on and, once Outlook is working again, Inlook places each conversation in an “Inlook” folder in your mailbox, so your records stay in one place. It's optional, and Inlook asks for mailbox permission only when you switch it on.
FAQ
Questions people ask
Is Inlook end-to-end encrypted?+
No. Messages are encrypted in transit (HTTPS) and stored in an encrypted database, and access is limited to the people each message was sent to. Inlook's servers can process message content in order to deliver it. We'll say so plainly if that changes.
Does Inlook read my Outlook mailbox?+
No. Signing in shares only your name and email address. Inlook would need mailbox permission only for the optional copy-back feature, and it asks before turning that on.
What if the person I'm writing to isn't on Inlook?+
Your message is held for their address. Nobody can read it until the verified owner of that address signs in, at which point it appears in their inbox.
Can my company control who uses it?+
Yes. Inlook is a standard Microsoft Entra app, so your IT admin can approve it for everyone, restrict it, or block it like any other app.
Is Inlook made by Microsoft?+
No. Inlook is independent and isn't affiliated with or endorsed by Microsoft. It uses Microsoft's standard sign-in.
Start a conversation in under a minute
Sign in with Microsoft and write to anyone. If they're not here yet, they'll find your message waiting.
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