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Send as your alias from Outlook

Which Outlook versions can send as your alias through Mailyoto, how to set up classic Outlook for Windows, and what to use otherwise.

Pro or Max plan Updated 31 October 2026

When you finish, you know whether your Outlook can send as your alias, such as amina@lunavera.com, and you have set it up if it can.

To send as your alias, a mail app must read your inbox with one username and password and send through Mailyoto with another. Not every Outlook allows that.

OutlookCan send as your alias
Classic Outlook for WindowsYes, with an account you add by hand (below)
New Outlook for WindowsOnly when your inbox username is the alias itself. It uses the email address as the incoming username. It can’t pair your alias with a Gmail or other inbox
Outlook on the web and Outlook.comNo. It can’t send through another company’s server

If yours can’t, reply from your alias, which works in every Outlook with nothing to set up, or send from Apple Mail or Thunderbird.

Settings for classic Outlook#

Account type
IMAP
Incoming mail server
Your inbox provider's IMAP server, such as imap.gmail.com
Incoming sign-in
Your inbox username and password
Outgoing mail server
smtp.mailyoto.com
Outgoing port
587
Outgoing encryption method
STARTTLS
Outgoing user name
amina@lunavera.com
Outgoing password
Your credential's password

Before you start

  • Classic Outlook for Windows.
  • A credential on your domain and its password (create one).
  • Your inbox provider’s IMAP server name, and your username and password for it.
  1. Start a manual setup#

    Choose File → Add Account. Type your alias, open Advanced options, tick Let me set up my account manually and choose Connect. Choose IMAP as the account type.

  2. Enter the incoming server#

    Fill in the incoming server and your inbox username and password from the settings. This is how Outlook reads the email your alias forwards to.

  3. Enter the outgoing server#

    Fill in Mailyoto’s outgoing server from the settings. When Outlook asks for the outgoing username and password, use your credential’s username and password, not your inbox’s. Choose Next and finish the setup.

Check that it worked#

Write a message from the new account to someone at another provider, such as diego@harborpine.net. The recipient sees your alias as the sender. The message appears in your domain’s Usage and logs tab when you choose Sent under Type.

Outlook has no field for a separate outgoing username

Open the account’s settings, then More Settings → Outgoing Server. Tick My outgoing server (SMTP) requires authentication, choose Log on using and enter your credential’s username and password.

Outlook can't connect to the outgoing server

Set port 587 with STARTTLS. Some versions offer TLS in place of STARTTLS. If your network blocks port 587, port 465 with SSL/TLS also works.