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I realized that I left autodisover.domain.com off of the SAN names for my Exchange 2010 server. &nbsp;The IMAP, POP, IIS, and SMTP services use this certificate. &nbsp;It is issued by a trusted public CA. &nbsp;I renew the certificate with the CA for free in a few minutes. &nbsp;I thought I should renew the existing certificate on the Exchange server and adding the necessary SAN name. &nbsp;Is this correct or should I create a new exchange certificate?
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I realized that I left autodisover.domain.com off of the SAN names for my Exchange 2010 server.  The IMAP, POP, IIS, and SMTP services use this certificate.  It is issued by a trusted public CA.  I renew the certificate with the CA for free in a few minutes.  I thought I should renew the existing certificate on the Exchange server and adding the necessary SAN name.  Is this correct or should I create a new exchange certificate?

Change SAN names on Exchange Certificate

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

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.