That’s it, you can close all windows and you will have access to both mailboxes on your Outlook for Mac. End-user experience The first item that the end-user must be aware is the From: option when sending e-mails, since there are two accounts the user can chose which account will be sending the message. Note: Having two accounts solves a common issue in some companies where the user (let’s say anderson@itprocentral.com wants to send message as webmaster@itprocentral.com) and for this kind of scenario two accounts are required. If the user just wants to receive both accounts, then it is easier to add both SMTP address into the same mailbox. In the main area of the Outlook, we will see both accounts under Inbox. I have a Macbook Air running El Capitan.

Microsoft Outlook 2016 for the Mac is an email client that lets you compose, read and manage your emails. Adding an email account to the client is a very easy and simple process.
In this Tutorial we are going over the process to configure an additional account in Outlook for Mac, and how it works on the end-user side. Bear in mind, that if you are an Office365 customer with plans such as Office 365 Business, Office 365 Business Premium, Office 365 Enterprise E3, and E4 you do have the Outlook for Mac as part of your subscription. Open Outlook for Mac 2011. On the Tools menu, click Accounts. If this is the first account you're creating in Outlook 2011, under Add an Account, click Exchange Account. If you've previously created an email account for a different email address, in the lower corner of the Accounts dialog box, click, and then click Exchange. Important: In addition to configuring your NetID account, this document also contains instructions on how to configure a Service Account. The recommended configuration for Service Accounts within Outlook is to have the Service Account linked to your NetID account and then to use the delegation feature to interact with the Service Account. To enable logging in Outlook 2016 for Mac, follow these steps: Enable logging. On the Window menu, click Sync Errors. In the Sync Errors window, click the Gear icon. Select the Turn on logging for troubleshooting option, and then click OK.
Outlook 2016 (15.29). When I try to add my two Office365 accounts, one of them goes offline. I deleted one and added it again and both were online, but then the second one dropped off. I deleted the second one and added again.
The stayed up for a bit (10 mins or so) but then the first one dropped off. This is something new since the latest upgrade, as they have worked fine before.
Am I right in assuming that I should be able to have several Exchange account inthe app?