An easy way to enable Outlook Anywhere on Microsoft Exchange Server 2010 with Powershell:

Enable-OutlookAnywhere –ExternalHostname ‘mail.yusufozturk.info’ –SSLOffloading $false
-DefaultAuthenticationMethod ‘Basic’

You can set authentication method as Basic or NTLM.

You can enable Outlook Anywhere on Powershell with following command:

Enable-OutlookAnywhere -ExternalHostname 'mail.yusufozturk.info' -SSLOffloading $false -DefaultAuthenticationMethod 'Basic'

You may wait 15 minutes to connect your Exchange Server with Microsoft Office Outlook.