Exchange 2010
autodiscover Cname redir.na01.secureowaonline.com
Exchange 2013
autodiscover Cname redir.na02.secureowaonline.com
Note: If you have multiple domain aliases, each of those domains will need to have the above record added to their DNS Zone. Once AutoDiscover is setup correctly, you will see a pop-up window within your email client.
This pop-up is expected, and indicates that Outlook has detected the AutoDiscover redirect, and is redirecting to a secure AutoDiscover site hosted on our systems. Select "Allow" to continue. Check the box next to "Don't ask me about this website again" > Allow > this will discontinue the pop-up from appearing when using Outlook.
You will need to contact your DNS hosting company to alter your DNS records. Your DNS hosting company is usually your Registrar (where you purchased your domain) or the company that hosts your web site. If you are not aware of who hosts your DNS file, we recommend contacting company hosting your web site.