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Which check specifically? Do you get certificate warnings or similar when accessing anything via OA externally?
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Which check specifically? Do you get certificate warnings or similar when accessing anything via OA externally?

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Hi,<br />
<br />
I am going thru and starting a migration from on premises Exchange 2007 to Cloud based Office 365. I have done a check on the Microsoft Remote Connectivity Analyzer and it is coming back with an error of:<br />
<br />
It says attempting to resolve host name was successful. Testing port 443 was successful.<br />
Testing the SSL certificate to make sure it's valid. <br />
&nbsp; The SSL certificate failed one or more certificate validation checks. <br />
<br />
When I use Outlook on my laptop outside my business network it connects up to my exchange and downloads and sends emails no problems.<br />
<br />
I have a Go Daddy certificate installed on my server for the domain.com.au.<br />
<br />
Any ideas on where I can start with this?<br />
<br />
Regards,<br />
<br />
Paul
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Hi,

I am going thru and starting a migration from on premises Exchange 2007 to Cloud based Office 365. I have done a check on the Microsoft Remote Connectivity Analyzer and it is coming back with an error of:

It says attempting to resolve host name was successful. Testing port 443 was successful.
Testing the SSL certificate to make sure it's valid. 
  The SSL certificate failed one or more certificate validation checks. 

When I use Outlook on my laptop outside my business network it connects up to my exchange and downloads and sends emails no problems.

I have a Go Daddy certificate installed on my server for the domain.com.au.

Any ideas on where I can start with this?

Regards,

Paul

Exchange 2007 migrating to cloud Office 365

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

HTTPS is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security (TLS) or its predecessor, Secure Sockets Layer (SSL). The main motivation for HTTPS is authentication of the visited website and to protect the privacy and integrity of the exchanged data. HTTPS is widely used for protecting page authenticity on all types of websites, securing accounts and keeping user communications, identity and web browsing private.