Microsoft Teams allow users to send emails directly to a channel. Each channel has a unique address. Emails sent to the channel show up in that channel's General tab.

To enable or disable channel email, follow these steps:

1. Navigate to the Microsoft Teams admin center (https://admin.teams.microsoft.com) and select Org-wide settings | Teams settings.
2. Under Email integration, use the slider bar for Allow users to send emails to a channel email address to enable or disable the feature:

3. Under Email integration, add email domains from which you wish to accept channel emails. By default, all internal and external domains can send to channel email addresses. As soon as you modify this setting, only domains in the list will be able to send to channels. This is an organization-wide setting and will affect all Teams.
4. Scroll to the bottom of the page and click Save.

Next, we'll look at configuring Teams apps settings.