Sending Email as Other Email Addresses in Exchange Online

Owned by Jennifer Allan
Last updated: Mar 16, 2023
2 min read

Introduction

You can have multiple email addresses. For example, many people have both an @medschl email address as well as an @cam one. With the migration of medschl email addresses over to Exchange Online both medschl and cam email will show up within the same mailbox. This also applies to those who have some additional mail aliases such as This Institute.

You may wish to be able to choose which email address an email is sent from - even though it will all live in the same mailbox.

This method needs to be done on a per email message basis. If you want to permanently change your default email address, please contact the CSCS Service Desk.

Requirements

CRSID

Exchange Online Account

Instructions

When you have been migrated to Exchange Online, your default (primary) sending address should be the same one that you were using on the medschl on premise email server. For most people this will be an @medschl address. This is also the address that shows up in the Global Address book

Outlook Windows

  1. You need to display the From line at the top of a new email (see yellow highlight below)

    1. Create a new email message

    2. Select the Options tab, select From > More options 

       

       

  2. Click on From > Other Email Address…
     

  3. Fill in the address you wish to send from. Click OK

  4. The From field in your message will now display the address you are sending from. You can continue to compose your message.

 

Outlook for Mac

Sending from an additional address or alias is not currently supported in Outlook for Mac.
 

Outlook Web App

Select the From button to open the drop-down menu showing the email addresses, from which you can choose to Send As:

If the address does not appear in the list automatically, select 'Other email address...' and then type in the address manually in the 'From' field.
 

Outlook mobile app (iOS)

Open a new email message and select the arrow beside your email address at the top of the screen to open the drop-down menu to choose a 'Send As' address: