Sectigo (Formerly Comodo) SSL - Sectigo Unified Communication Wildcard Certificate (Formerly Comodo)

-Encryption strength of 256-bit/2048-bit root
-Effective SSL-support for MS Exchange and MS Office Communications Server
-Full business validation SSL Certificate
-3 domain names already included
-Highly trusted by 99.9% of major web-browsers and e-mail clients
-SAN-supported certificates to secure multiple fully qualified domains
-Supports Microsoft Exchange's service of Auto discover, a new capability for MS Exchange users that eases client administration
-No fee for re-issuances
-Streamlines the process of certificate management: just a single certificate ably supports multiple domain names, host names and applications
-24/7 SSL Certificate support through Ticket System

Additional Information
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Example: secure.yourdomain.com, www.yourdomain.com etc