An Office 365 Kiosk user tries to set up a mail account for Exchange Online in Microsoft Outlook 2010 or Microsoft Outlook 2013. However, the user's Outlook profile isn't automatically set up. Instead, the user gets the following error message under Searching for your mail server settings
An encrypted connection to your mail server is not available.
Click Next to attempt using an unencrypted connection.
This error message is displayed even though the user entered his or her email address and password correctly on the Auto Account Setup
page of the Add New Account Wizard in Outlook.
This behavior occurs if the user is trying to connect Outlook to Exchange Online by using Exchange Autodiscover. Office 365 Kiosk plans don't support using Outlook to access mail in Exchange Online through an Exchange connection.
To work around this behavior, do one of the following:
For more information about Office 365 kiosk plans, see Office 365 for business - Kiosk plan
If Office 365 users who aren't kiosk users get this error message, see the following Microsoft Knowledge Base article:
Outlook can't set up a new profile by using Exchange Autodiscover for an Exchange Online mailbox in Office 365
Still need help? Go to the Office 365 Community