Send email as a distribution list in Office 365
In Office 365, you can send email as a distribution list. When a person who is a member of the distribution list replies to a message sent to the distribution list, the email appears to be from the distribution list, not from the individual user. This topic shows you how to do this.
Send email as a distribution list
Before you perform these steps, make sure you've been added to an Office 365 distribution list and you've have been granted Send as permission on it.
Admins: Make sure you've followed the steps in the Add an Office 365 user or contact to a list and Allow members to send email as an Office 365 Group topics, and added the correct people to the distribution list.
Open Outlook on the web and go to your inbox.
Open a message that was sent to the distribution list.
At the bottom of the message, select More > Show from.
Right-click on the From address - such as
Ina@weewalter.me- and choose Remove.
Then type the distribution list address such as email@example.com, and send the message. The next time you reply from the distribution list, its address will appear as an option in the From list.