How to Add Multiple Hotmail Aliases to Outlook Mobile Without Re-Login

If you use a Hotmail or Outlook.com account with multiple aliases, you may want to send email from each alias without switching accounts. The Outlook mobile app for iOS and Android does not support adding aliases directly in its settings. This article explains how to configure your Hotmail account aliases in Outlook Mobile so you can send from any alias without logging out and back in.

The core problem is that Outlook Mobile treats each alias as a separate send-from address only after you enable the feature on the Microsoft account website. Once enabled, you can select any alias when composing a new message. This guide covers the steps to add and activate aliases and then use them in the mobile app.

You will learn how to add a new alias to your Microsoft account, set the default send-from address, and switch between aliases in Outlook Mobile without any re-login.

How Hotmail Aliases Work in Outlook Mobile

A Hotmail alias is an additional email address linked to your primary Microsoft account. All messages sent to any alias arrive in the same inbox. Outlook Mobile does not have a built-in alias manager. Instead, you must add and activate aliases through the Microsoft account website or Outlook.com settings.

After you add an alias, it becomes available as a send-from address in Outlook Mobile. You do not need to re-enter your password or log out. The app reads the alias list from your account settings. The alias works for sending only; replies to messages sent to a specific alias may use the default address unless you change it per message.

Prerequisites

You need a Microsoft account with a Hotmail or Outlook.com address. The Outlook Mobile app must be installed on your iPhone or Android device and signed in with that account. You also need access to the Microsoft account website or Outlook.com in a browser.

Steps to Add a Hotmail Alias and Use It in Outlook Mobile

Follow these steps to add a new alias, set it as the default send-from address, and then use it in the Outlook Mobile app.

1. Sign in to your Microsoft account
   Open a browser and go to account.microsoft.com. Sign in with your primary Hotmail or Outlook.com email and password.
2. Go to Your Info
   Click Your Info at the top of the page. Under the Account info section, click Manage how you sign in to Microsoft.
3. Add a new alias
   Click Add email. You can create a new @outlook.com or @hotmail.com address, or add an existing email address from another provider. Enter the desired alias and click Add Alias.
4. Verify the alias (if required)
   If you added an existing third-party email, Microsoft will send a verification code to that address. Enter the code to confirm ownership. For new @outlook.com or @hotmail.com aliases, no verification is needed.
5. Set the default send-from address on Outlook.com
   Go to outlook.live.com and sign in. Click the gear icon in the top-right corner, then click View all Outlook settings. Go to Mail > Sync email. Under Choose a default from address, select the alias you want Outlook Mobile to use by default. Click Save.
6. Open Outlook Mobile and compose a new message
   On your iPhone or Android device, open the Outlook app. Tap the compose button (pencil icon or plus sign). In the new message window, tap the From field. A list of all your activated aliases appears.
7. Select the alias for this message
   Tap the alias you want to use. The From field updates to show that address. Complete the To, Subject, and body fields, then send the message.

After step 5, the alias you selected becomes the default for all new messages in Outlook Mobile. You can change it per message by tapping the From field again.

Common Issues When Using Hotmail Aliases in Outlook Mobile

Even after adding an alias, some users encounter problems. Here are the most frequent issues and how to resolve them.

Alias does not appear in the From field

If the alias is not listed in the From field, you may not have set it as a send-from address on Outlook.com. Go to Outlook.com settings and ensure the alias is selected under Choose a default from address. Also verify that the alias is added to your Microsoft account under Manage how you sign in. After making changes, close and reopen the Outlook Mobile app.

Replies go to the wrong alias

When you reply to a message sent to a specific alias, Outlook Mobile may use the default address instead of the alias that received the original message. This is a known limitation. To send a reply from the correct alias, tap the From field before sending and select the alias manually.

Cannot add more than 10 aliases

Microsoft allows up to 10 aliases per Microsoft account. If you try to add an 11th alias, the option is grayed out. Remove an unused alias before adding a new one. You can remove an alias from the same Manage how you sign in page by clicking Remove next to the alias.

Outlook Mobile shows old default alias after change

The app may cache the default alias. Force close the app and reopen it. On iOS, swipe up from the bottom and swipe the Outlook app card away. On Android, go to Settings > Apps > Outlook > Force Stop. Then reopen Outlook Mobile. The new default alias should appear.

Microsoft Account Alias vs Secondary Account: Key Differences

Item	Alias	Secondary Account
Inbox	Shared with primary account	Separate inbox
Sign-in credentials	Same password as primary	Different password required
Outlook Mobile setup	No additional login needed	Must add as a new account
Send-from selection	From field in compose window	Switch between accounts
Maximum count	10 per account	Unlimited

Using an alias is simpler for sending from multiple addresses without leaving your primary inbox. A secondary account gives you a completely separate mailbox but requires switching accounts in Outlook Mobile.

You can now add multiple Hotmail aliases to your Microsoft account and use them in Outlook Mobile without re-login. To switch between aliases, tap the From field in a new message. For frequent alias changes, set your most-used alias as the default in Outlook.com settings under Mail > Sync email. If you need to send from an alias that does not appear, verify it is added to your Microsoft account and set as a send-from address on Outlook.com.