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Configure Microsoft 365 Outlook (Windows) for IMAP (email)
This guide explains how to connect the desktop app Microsoft 365 Outlook MSO (desktop application on Windows) to an email address hosted by Infomaniak.
Prerequisites
- Create the address within my kSuite or on a Mail Service (Mail Service only, or existing within a kSuite).
- Test the email address password (do not confuse it with the one used to log in to the Infomaniak interface).
- Check on the Mail Service that the automatic diagnosis is correct.
Add the email address to the application
To configure the email application:
- Open the application.
- Click on File.
- Click on Add an account.
- Enter the email address to be linked.
- Click on Connect.
- Choose IMAP:
- Check and complete the missing information by scrolling down if necessary:
- Click on Next.
- Enter the password for your email address.
- 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 enable this protocol:
- Prioritize port
587+ STARTTLS: this is the official technical standard and the most compatible method with the majority of modern systems for authenticated submission. - Tolerate port
465+ SSL/TLS only as a compatibility option or alternative, specifying that it is implicit encryption, but that 587 remains the recommended choice.
- Prioritize port
- Username = full & complete email address ( ? )
- Password = the one assigned to the email address you want to access ( ? )
- Authentication required to send emails:
- It is activated in the SMTP settings of your application.
- Check "use the same parameters as the incoming server" or according to the software/email clients, enter a username (= full & complete email address) and its password.
Refer to this other guide if you are looking for information about other compatible messaging ports and protocols.
In case of problem
⚠️ The various services offered by Infomaniak are all compatible with the corresponding standard protocols (notably IMAP/SMTP for email, WebDAV for sharing, S3/Swift for storage, etc.). Therefore, if you encounter a problem with third-party software, contact its publisher or a Partner and consult the support policy as well as article 11.9 of the Infomaniak Terms and Conditions.
It is not necessary to contact Infomaniak Support if your email address works well outside the application. The most common error concerns the use of an incorrect password. The troubleshooting guides help you resolve any potential issues:
- Refer to the solutions given in this other guide regarding email in general.
- This other guide is more specifically about Outlook.
… and if your Outlook no longer works since a change of email password, refer to this other guide.