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Microsoft Exchange Server 2016 PowerShell Cookbook - Fourth Edition by Mike Pfeiffer, Nuno Mota, Jonas Andersson

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How it works...

In this recipe, the prerequisite is to have a third-party certificate that is issued by a trusted issuer; in my example, I'm using a certificate from DigiCert. The certificate is required in order to have a fully working hybrid solution, since Office 365 (Exchange Online) won't trust a certificate issued by an internal issuer (Internal PKI).

The certificate should be assigned to at least the IIS and SMTP service, since it's going to be used for these services for Autodiscover, Web services, and for the mail flow between the on-premises solution and the cloud solution.

We started to validate that there is an existing federation trust certificate; this is issued during the hybrid configuration and it's important to have an in-place ...

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