Outlook desktop

1. Select New Email.
2. Select Options ja then click From.
   
3. Click the From button and select Other email address.
4. Write the address of your alias in the box.
   
5. The e-mail will be sent under an alias.

Outlook on the web

1. Log in to the web client from kiri.ut.ee.
2. Click New Message.
   
3. Press the button with 3 dots and select Show From.
   
4. Press the From button and select Other email address.
   
5. Manually write the address of your alias in the From field.
   
6. The e-mail will be sent under an alias.