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Send an email from another Infomaniak email address

Update 10/15/2026

This guide explains how to configure a different sending and reply address than the email address used on the Infomaniak platform.

 

✘ NOT AVAILABLE with
my kSuite (ik.me, etik.com, ikmail.com)


 

Introduction

  • This is useful for working with one of your mail aliases (special aliases only) or synonymous domains.
  • This will work with the Infomaniak Mail web app (online service ksuite.infomaniak.com/mail) but also with most email software/clients.
    • Please note: there is no link between the settings entered in the Mail Infomaniak signature section and the email software/clients.
    • Each email software/client has its own settings, and you can, for example, define a different reply address within each tool (see the bottom of this guide).
  • To manage the sender of out-of-office messages, please refer to this other guide.

 

Configure the sending address in the Infomaniak Web Mail app

Prerequisites

  • The secondary email address that can be used must have been added as:

To access the options for sending addresses:

  1. Click here to access your emails on your Infomaniak kSuite (❓: help).
  2. Click on Settings ‍ in the top right corner.
  3. Check or select the relevant email address from the dropdown menu in the left-hand sidebar.
  4. Click on ‍Signatures:
  5. Click on the action menu ⋮ to the right of the current signature.
  6. Click on the pencil ✎ icon to edit the current signature.
  7. OR create a new signature:
  8. Click on the chevron ‍ to expand the Advanced Settings section at the bottom of the page.
  9. Sender address: If available, this allows you to specify the address that will be displayed as the sender in your recipients' inboxes.
  10. Reply-to address: This allows you to receive future replies to your messages (return-path) at a different address.(from the options specified in the prerequisites above)…
    • …and if you write a message in response to a reply received on this alias, the signature that allows sending with this alternative identity will be applied instead of the signature that is defined by default.
  11. Confirm with the Save button (if this button remains grayed out, make sure that all fields are filled in, especially the full name field):
  12. Write a new message by selecting the corresponding signature:

In the example above, the shipping address has been modified, but not the reply-to address. This produces the expected result for the recipient (simply check the headers of the received message to confirm).

Now, add the same secondary address in an email software/client; the effect will be the same.

 

Configure the sending address in your email software/client

Prerequisites

  • The secondary email address that can be used must have been added as:

It is possible to configure an email client with any existing email address, even if it exists as an alias in your Mail Service. Sending will be done in the same way as with an address defined as a "primary" email.

Example in the Thunderbird software:

  1. Add an account with the correct mail settings related to the alias:
  2. Compose a new message from your email software/client.
  3. Once received, the message is clearly identified, including in its headers, as being sent from an address that you will recognize as an alias:

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