This guide explains how to set up a sending and reply address different from the email address used.

Preamble

• This is useful for working with one of your mail aliases or synonym domains.
• This will work with the Infomaniak Web app Mail (online service mail.infomaniak.com) as well as with most email software/clients.
  • However, note that: there is no link between the settings entered in the Signature section of Infomaniak Mail and the email software/clients.
  • Each email software/client has its own settings and you can, for example, set a different reply address within each of the respective tools (read at the bottom of this guide).

Setting up the sending address on the Web Mail app

Prerequisites

• The secondary email address that can be used must have been added as:
  • … or mail alias (example: aa@ instead of anna.alpha@)
    • or special alias
  • … or synonym domains (example: @short-dom.xyz instead of @this-is-my-super-long-domain.xyz)

To access the sending address options:

1. Click here to access the Web app Mail Infomaniak (online service mail.infomaniak.com).
2. Click on the Settings icon ‍ at the top right of the interface.
3. Check or select the relevant email address from the dropdown menu on the left sidebar.
4. Click on ‍Signature.
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 ELSE create a new signature:
   
8. Click on Show advanced settings:‍
   ‍
9. The address…
   1. … from allows you to set the address that will be mentioned as the sender in the inbox of your recipients.
   2. … reply allows you to receive future replies to your sent emails (return-path) to a different address (among the choices specified in the prerequisites above)…
      • …and if you write a message following a response obtained on this alias, the signature allowing sending with this alternative identity will be applied instead of the signature defined by default.
10. Confirm with the blue Save button (if it remains grayed out, make sure all fields are filled in, especially the full name field):
    
11. Compose a new message by selecting the corresponding signature:
    

In the example above, the sending address has been modified but not the reply address. This gives the expected result with the recipient (it is enough to look at the headers of the received message to prove it).

Add the same secondary address to an email client, the effect will be the same.

Configuring the sending address on an email client

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

Example in the software Betterbird (a fork of Thunderbird):

1. Add an account in Betterbird with the correct mail parameters related to the alias:
   
2. Compose a new message.
3. Once received, the message is correctly described as being sent from an address that you will know is an alias: