Set up Outlook

We recommend against Free / Bundled Outlook

We recommend against using the free Outlook app — delivered through the Microsoft Store and usually bundled with Windows 11 (Microsoft labels it “New Outlook”) — with your Tranet Mail account. The same applies to the Outlook apps on iPhone, iPad, and Android. Use classic Outlook (with the fix below) or another direct mail app instead.

Here’s why. The Free / Bundled Outlook app (and the Outlook mobile apps) don’t connect to your mail server directly. When you add an account — including Tranet Mail — they route it through Microsoft’s own cloud, which stores your Tranet Mail username, password, and a copy of your messages on Microsoft’s servers. This is how the app is built — there is no setting to turn it off, so it cannot be made safe for Tranet Mail.

Classic Outlook — the paid desktop app that comes with Microsoft Office / Microsoft 365 — connects directly to Tranet Mail and does not route your mail through Microsoft’s cloud. However, it is not safe out of the box: by default it tries Microsoft’s servers first when setting up an account and can redirect your account to Microsoft. The registry fix on this page prevents that and keeps it connecting directly. So classic Outlook is fine to use once you apply the fix below — not before.

Apps that connect directly to Tranet Mail, with no third party in between, include Apple Mail, the Gmail app, Thunderbird (desktop and mobile), K-9 Mail, and most built-in phone mail apps — as well as classic Outlook (the Office desktop app, Windows or Mac). If you’d rather your mail stay strictly between you and Tranet Mail, use one of these.

If you have already used Free / Bundled Outlook with your Tranet Mail account: your password has been stored on Microsoft’s servers, so it should no longer be treated as private to you and us. We recommend you change your Tranet Mail password (Account self-service on the home page) and turn on two-factor authentication in webmail, so that even a leaked or misused password can’t open your mailbox on its own. If that password is also your Active Directory / Windows network login (true for some Tranet domains), it now sits on Microsoft’s servers too — change it promptly, as it protects far more than email.

When you enable this sync, you agree — in Microsoft’s fine print — that your account data is handled under Microsoft’s own Services Agreement and Privacy Statement, which limit Microsoft’s responsibility for it. A credential stored in someone else’s cloud is outside your control. For that reason we recommend not using Free / Bundled Outlook with Tranet Mail, and using classic Outlook (with the fix on this page) or a direct client such as Thunderbird instead.

If your business carries cyber liability insurance, and you nonetheless choose to trust Microsoft with this access, check with your insurer for guidance first — routing mail and credentials through a third party can affect your coverage.

Disclaimer. Tranet Mail connects your email directly and privately between you and our servers. No email system, including Tranet Mail, is immune to compromise, and we do not guarantee against all risk; keeping your account secure is a shared responsibility. Choosing a mail client that routes your messages or credentials through Microsoft or any other third party is your decision and outside Tranet’s control. Tranet Inc. accepts no liability — implied, explicit, or otherwise — for exposure, loss, or damages arising from that choice. By making that choice, you agree to indemnify and hold harmless Tranet Inc., including for the cost of defending any resulting claim. If your organization carries cyber liability insurance, confirm with your insurer before using such a client.

Monitoring notice. Tranet may, as a courtesy and on a best-effort basis, detect and report when your account is accessed persistently from a third-party or cloud provider rather than your own device. This monitoring is provided without warranty; it may be incomplete, inaccurate, or delayed, it identifies infrastructure and not intent, and it creates no obligation on Tranet to detect, prevent, or notify you of any particular access. You remain responsible for your own account security.