OVH Guides

Configuring two-factor authentication on an Exchange account

Find out how to configure two-factor authentication on an Exchange account

Last updated 11th March 2020

Objective

If you wish to increase the security on your Exchange account, you can enable two-factor authentication (2FA). This will generate a random code that must be entered when you log in, in addition to your password. This code is generated using a one-time password (OTP) app, which must be installed on your smartphone or tablet.

This guide explains how to enable two-factor authentication on your Exchange account.

Requirements

OTP mobile applications

You can choose from a number of OTP applications. Here are two examples that are free to use.

  • For Android: Free OTP
  • For iOS: OTP Auth

Instructions

First configuration

Step 1: Enable two-factor authentication on the platform

For the initial configuration, you need to enable two-factor authentication on the Exchange service before enabling it on an account.

Log in to your OVHcloud Control Panel and select Web in the top navigation bar. Click Microsoft in the services bar on the left-hand side, then Exchange. Next, select the Exchange service concerned.

Switch to the Security tab and under “Two-factor authentication”, click on Enabled. To finish, scroll to the bottom of the page and click on Save changes.

2fa-exchange

Step 2: Enable two-factor authentication on an account

After enabling two-factor authentication on the Exchange service, you can then enable it on each one of your accounts.

Go to the Email accounts tab and click on ... to the right of the account on which you wish to enable two-factor authentication, then click on Enable two-factor authentication.

2fa-exchange

To link the Exchange account to your OTP app, log in to your webmail.

At the first attempt to log in, a QR code will appear. Use your OTP app to scan it, then enter the code that the app generates to log in.

2fa-exchange

When you next log in, webmail will only ask for the code generated by the app.

Disabling two-factor authentication

You can disable two-factor authentication on your account in three ways.

Log in to your OVHcloud Control Panel and select Web in the top navigation bar. Click Microsoft in the services bar on the left-hand side, then Exchange. Next, select the Exchange service concerned.

From the Email accounts tab, click on ... to the right of the account on which two-factor authentication is already enabled.

2fa-exchange

Select the option that you need according to the table below:

No. Purpose Description
1. “Disable two-factor authentication” Suspends two-factor authentication for a defined number of hours. Once the time period has passed, the two-factor authentication will be reactivated.
For example: a user has forgotten their phone and cannot authenticate themselves with the OTP app.
2. “Reset two-factor authentication” Resets the QR code requested when you first log in to webmail.
For example: a user has changed phones and needs to reconfigure their OTP application.
3. “Remove two-factor authentication” Fully removes two-factor authentication from the account.

Go further

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