What Is Secure Socket Layer Unified Communications Certificate (SSL UCC)?

(SSL UCC) are a type of SSL certificate developed with the Microsoft Office Server 2007 and Microsoft Exchange 2007 products. The only difference with a regular SSL certificate is the Subject Alternative Name (SAN) field, which can contain any domain or common names that enable the certificate to work with those listed (domain) words. A SAN is like a nickname for your certificate. It's an alternative name for your website or server that can be used when multiple domains are on one server. For example, if you have both www.example1.com and www.example2.com on your server, you could use one certificate for both sites instead of buying two different ones just because they share one IP address—which would be way more expensive! With Secure Socket Layer unified communications certificates, you can secure your entire domain with one certificate. It's a single solution that allows SSL encryption for many domain names. It can provide significant cost savings and requires features in Microsoft Exchange, Office Communications Server 2007 and Live Communications Server. Microsoft's UC certificates are ideal for securing multiple website domains and sub-domain names. That's because they're easy to set up and manage, providing a cost-efficient way to ensure your environment. What if you don't have any Microsoft servers? Can you still use UC certificates? Yes! It's even easier than before! With Windows Server 2016, Microsoft offers free SSL/TLS certificates for all customers through the Azure Certificate Authority (CA). These certificates can be used to secure multiple websites and subdomains—even when no Microsoft servers are involved. The only requirement is that the primary domain name is registered as an Azure Active Directory (AAD) tenant. That means you can secure multiple websites with just one certificate—no matter where they're hosted or how many IP addresses they have.