**IMPORTANT: You must enable the SMTP option in your Office 365 account. This can be accessed multiple ways.
Click the gear icon (settings) in upper right. Choose Mail, Sync Email, Enable the toggle for POP and IMAP. We cannot do this for you.
2. By going to
https://admin.exchange.microsoft.com. Logging in with your account you want to setup in KC. (Note that if your O365 email is hosted through another company like Go Daddy, you'll have to login with your Go Daddy credentials or to your Go Daddy page to get to admin settings.
Go to Settings, Mail Flow and make sure the "Turn off SMTP Auth protocol for your org." is UNCHECKED and that the "Turn on use of legacy TLS clients" is CHECKED.
In KC Cloud go to Setup, Business Info, Emails and add the settings shown below. (Use your full email address in the username field.)
You'll want to make sure that on the Business Info tab, the EMAIL field is the same email address you're using on the Emails tab. They cannot be different.