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Set up New Outlook (Windows) in IMAP (mail)

Update 05/18/2026

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.

 

Preamble

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

 

Add the email address to the application

Prerequisites

The password created for the email address must meet the detailed criteria 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 top right corner (otherwise, skip to step 4).
  3. Click on Add an account:
  4. Enter the email address to be linked.
  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 with the elevator, then check and complete the missing information.
  10. Click on Continue:
  11. Read and go through the different Microsoft information windows:
  12. There you go, 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 = full & complete email address ( ? )
  • Password = the one generated for the email address you want to check (it must meet the detailed criteria 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 parameters as the incoming server" or, depending on the software/email clients, enter a username (= full & complete email address) and the generated password.

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

 

In case of problem

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

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

Also create a new password by letting it be generated randomly but also checking that it meets these criteria imposed by Microsoft:

Allowed characters
  • letters: A-Z, a-z
  • digits: 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 dot (.) must not immediately precede the @ symbol
Password length16 characters MAXIMUM

Check that the Mail Service is configured optimally.

The troubleshooting guides help you resolve any issues:

… and if your Outlook is no longer working since a change in your email password, become familiar with this other guide.


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