Please follow the step in this Microsoft Knowledge base article for configuring your mailbox on Outlook for Windows.
How do I setup my 365/Exchange mailbox using Outlook for Mac?
Outlook 2011 for Mac and Outlook 2016 for Mac use a very similar account setup method. Please see the official Microsoft knowledge base article on how to setup an Exchange mailbox using Outlook for Mac.
How to setup an email alias
Log onto Dcentral with your username and password. Navigate towards Email, follow onscreen instructions.
I’m having problems sending email from my POP account
Please configure SMTP authentication on your email client in order to route your outbound email via Databias’ email servers rather than your connectivity provider’s email servers. You should use the same user name and password for sending email as you do for receiving email when configuring your email client application (Outlook, MacMail etc.).
Please note that some connectivity providers forcefully reroute outbound email traffic via their own email servers. As such, please always ensure that you have enabled encryption on your email traffic and that you utilise the default ports offered by your mail client.
How do I setup my new 365 Exchange mailbox on my iPhone?
We recommend clients use the native iOS Outlook app in order to access their 365 mailboxes for an optimal end-user experience.