Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Wimowimo,
Please follow the steps below:
- Login to EAC (Exchange admin center) with an Office 365 admin account.
- Navigate to mail flow > rules.
- Click the add button to create a new rule as the picture shows below:
Note: When you select the The recipient is this personand Redirect the message to options, it will prompt a user list for you to choose. However, the aliases won’t be listed in it. Please type the alias’s email address in the Check names box manually and then click the Check names button, it will add them to the add-> box automatically. The picture below is for your reference:
After that, emails sent to alias3 will be redirected to the Gmail account.
Note: Emails sent to all aliases and primary email address will be redirected.
[Updated by Larry Yu MSFT, 08:04 AM, Mar 1, 2017 (UTC)]
Regards,
Larry