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SAN (Subject Alternative Name) SSL Certificates
A Subject Alternative Name (SAN) SSL Certificate, also known as Unified Communications SSL Certificate (UCC SSL), is mainly used for Microsoft Exchange 2007 (or newer) or Unified Messaging. This certificate allows multiple server or domain names using the same secure SSL certificate.
A normal SSL Certificate protects only one Fully Qualified Domain Name. In a SAN Certificate several alternatives of common names can be placed in the 'Alternative Name field'. Request the individual product pages for detailed information.
It allows you to secure your services with a certificate which is fully compatible for mobile devices, such as smartphones and PDAs:
- Outlook Anywhere
- Inified Messaging
In the case of a Domain Validated (DV) certificate, the domain name and SAN name should be the same as the Common Name (CN) at all time. In organisation validated certificates (OV and EV) you can even have different domain names. Until the certificate has the same company name. Because of everything is secured with just one certificate it is also easy to install and manage.
An example of different common names with just one SAN SSL Certificate:
*Note: Internal names like .local are not allowed with DV and EV (only allowed with OV until May 2015). You can use "internal server name.hereyourname.com".
An example of an organisation validated SAN SSL Certificate with multiple domain names: