Set the default email address to send email from

You can change the email address from which you send emails in the Outlook desktop app.

To change your default email account:

1. From Outlook, select File on the top-left corner.
   
   

2. Select Account Settings, then select Account Settings again.
   
   
3. From the list of accounts on the Email tab, click on the account you want to use as the default account.
4. Select Set as Default.
5. Select Close.

Next, set your default email account as sending email address:

1. Select File on the top-left corner.
   
   

2. Select Options from the bottom-left corner. The Outlook Options window will open.
   
   
3. Click on Mail from the left panel and scroll down to the Send Messages section.
4. Tick the box next to Always use the default account when composing new messages.
   
   
5. Select OK to save.