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Configure New Outlook (Windows) with IMAP (email)

Update 07/07/2026

This guide explains how to connect the desktop app New Outlook (desktop application on Windows, replacing Windows Mail) to an email address hosted by Infomaniak.

 

Introduction

  • Although the emails themselves remain stored on the Infomaniak server, the experience in New Outlook is highly integrated with the Microsoft cloud:
    • Some of your account information may be used by Microsoft for centralized management and a better synchronization experience.
    • If you want to have full and local control over your emails, consider using third-party email/client software (such as Thunderbird, for example) that allows for more direct storage.

 

Add the email address to the application

Prerequisites

The password created for the email address must meet the criteria detailed at the bottom of this guide.

To configure the email application:

  1. Open the application.
  2. If necessary, click on the gear icon in the upper right corner (otherwise, skip to step 4).
  3. Click on Add account:
  4. Enter the email address to be added.
  5. Click on Continue:
  6. Enter the password for the email address.
  7. Click on the See more button.
  8. Check and complete the missing information:
  9. Scroll down the page and then check and complete the missing information.
  10. Click on Continue:
  11. Read and go through the various Microsoft information windows:
  12. That's it, your email address is now configured in the application:

 

Recommended settings

  • Incoming IMAP server = mail.infomaniak.com
  • IMAP port = 993 (with SSL)
  • Outgoing SMTP server = mail.infomaniak.com
  • SMTP port & encryption protocol and command/method to activate this protocol: 587 + STARTTLS
  • Username = the complete email address (need help?)
  • Password = the one generated for the email address you want to access (it must meet the criteria detailed at the bottom of this guide)
  • Mandatory authentication for sending emails:
    • It is activated in the SMTP settings of your application.
    • Check "use the same settings as the incoming server" or, depending on the software/email client, re-enter a username (= complete email address) and the generated password.

Refer to this other guide if you are looking for information about other compatible email ports and protocols (SSL / TLS for example).

 

In case of problems

A solution that seems to work is the combination of these 2 situations:

  1. Be logged in to your Windows session with a Microsoft account (not just a local account).
  2. Have added the email address used to log in to Windows to this version of Outlook.

Also, create a new password by letting it be generated randomly, but also making sure that it meets the criteria imposed by Microsoft:

Allowed characters
  • letters: A-Z, a-z
  • numbers: 0-9
  • symbols: @ # $ % ^ & * - _ ! + = [ ] { } | \ : ' , . ? / ` ~ " ( ) ;
  • three of the following elements are required:
    1. lowercase
    2. uppercase
    3. numbers (0-9)
    4. symbols
Forbidden characters
  • Unicode characters
  • spaces
  • a period (.) must not immediately precede the @ symbol
Password lengthMAXIMUM 16 characters

Check that the Mail Service is configured optimally.

The troubleshooting guides will help you resolve any potential issues:

… and if your Outlook is no longer working after a change of email password, refer to this other guide.


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