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Copy Yahoo email content to Infomaniak
Update 05/26/2026
This guide explains how to transfer to Infomaniak email addresses currently hosted by Yahoo, using an IMAP import tool.
Introduction
- This operation will not affect data already present in the destination address or in the source address.
- The entirety of the external mailbox will be imported.
- Once the import process has started, it is no longer possible to interrupt it.
- Any duplicates will be managed: identical content will only be copied once.
- Please refer to this other guide if you are looking for alternatives to this IMAP process.
Import your entire email history
1. Yahoo Prerequisites
- To allow the Infomaniak assistant to access your Yahoo account, click on https://login.yahoo.com/account/security#other-apps and configure an application password, automatically generated by Yahoo.
- You will need to copy it and then paste it in place of your password in the Infomaniak email migration wizard. To generate it:
- Log in to your Yahoo account.
- Go to the Account Security tab.
- Click on Generate app password:

- Choose Other application:

- Enter an application name, for example, Infomaniak, and click Generate:

- Copy the application password.
2. Infomaniak Prerequisites
- Have a Mail Service on your Infomaniak Manager.
- Have a quota of available addresses or adjust it beforehand if necessary.
- Ensure that the email is properly secured
- Create one or more addresses on this Mail Service.
- If you have many (10+) email addresses to create, please refer to this other guide on bulk creation.
- The destination email address must be linked to the user (= the Infomaniak account) you are using.
3. Import Yahoo email content to Infomaniak
- Click here to access the import tool (online service https://import-email.infomaniak.com).
- If necessary, log in to your Infomaniak account for the relevant organization, as the import will be done to one of the email addresses linked to the Infomaniak Mail web interface (online service ksuite.infomaniak.com/mail) of the Infomaniak account you are using.
- Click on the import via IMAP.
- Click on the one-time import.
- Fill in the field on the left with your source email address (the content of which you want to copy).
- Fill in the field on the right with the password for that same source email address (see prerequisites above).
- Click on Confirm.
- If necessary, enter a second email address that you want to import at the same time.
- Choose the email address to which you want to import the emails; the drop-down menu lists the email addresses currently linked to your Infomaniak Mail web interface (online service ksuite.infomaniak.com/mail) of the Infomaniak account you are logged into.
- After selecting the desired destination address from the list, click the blue Import emails button.
- The copy process begins; you can wait and view the results on the page once the import is complete, or close the window (the import will continue in the background, and progress can be tracked – see below).
- A confirmation email will be automatically sent to all email addresses affected by the operation once the import is complete, indicating the number of messages copied.
- A progress tracker is available in the settings for the destination email address, on the web app Mail (online service ksuite.infomaniak.com/mail) only.
- The progress tracker allows you to view the import history for the address in question.
4. Adjust application settings
If necessary, as soon as you have taken the necessary steps to ensure that the domain name associated with your email address works with Infomaniak, modify the settings of the email software/clients you use so that they connect correctly to the Infomaniak servers: follow the configuration wizard.
Link to this FAQ: https://faq.infomaniak.com/611
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