Beginner’s Guide to Using Exchange SSL Certificate

There are many different types of SSL/TLS certificates available today which can make it quite challenging to choose the right option that suits your business needs. Especially if you are planning to install Exchange SSL certificates, then it’s important to know everything about buying and installing them on your server. Earlier, it was not mandatory to have SSL certificates for Exchange servers and the data which was transmitted not had encryption which left them exposed to hackers.

Since2007, Microsoft decided to install SSL.TLS certificates in all of its futureversions to ensure that the data remains secure and protected when it isexchanged among different networks across computers.

Whatis Microsoft Exchange Certificate?

MicrosoftExchange Server is one of the most widely used platforms for managing email,collaboration, scheduling meetings and serves as a calendar. It was developedby Microsoft and can be used across the Windows Server operating system andavailable as on-premise or SaaS platform. The first version of MicrosoftExchange Server was introduced in 1996 as Exchange Server 4.0 and later otherversions such as Exchange Server 5.5, 2000, 2003, 2007, 2010, 2016 and 2019were made available to the users.

Exchange Server certificates are also known by other names such as SAN SSL certificate or UCC SSL. This type of certificate offers economical solution for companies who wish to secure multiple domains and multiple host names rather than using different certificates for each domain. It simplifies the process of managing your host and domain services in this manner.

Microsoftprovides a range of host services including ActiveSync, AutoDiscover, Mailboxesetc. Thus, there is always a risk of misuse of information by hackers amongenterprises which makes it important to have security solutions such as ExchangeServer SSL certificates.

Whatforms Exchange SSL certificates distinctive?

TheUCC or SAN certificate can be used for providing security for up to 250 domainsusing a single certificate (depending upon SSL provider). This is useful forenterprises having multiple domains using a shared IP address and they aremainly designed for Microsoft Exchange Servers. The Multi Domain Certificate orMicrosoft Exchange Certificate provides a quick and convenient option for enterpriseslooking to secure multiple domains using a single solution. Thus, a single multipledomain certificate which also has the benefits of Exchange certificate can behelpful in covering up to 250 domains.

Keybenefits of using Exchange SSL certificates

UnifiedCommunications or Exchange SSL certificates are particularly suitable to the Microsoft Exchange or Microsoft Office Communication Server. Whenyou compare wildcard with exchange certificate then a limitation arises due tofirst level of subdomains’ security. While exchange SSL can secure multiplelevel domains easily. It thus reduces administrative cost and complexity ofsecurity related issues. Thesecertificates also provide support to the Autodiscover feature in MicrosoftExchange which helps in simplifying client administration. ExchangeSSL certificates are versatile as there is no need to buy additionalcertificates for different domains. Thus, if you want to secure differentdomains, multiple domain names, this type of certificate may be used foreliminating the issue of managing multiple certificates that come withdifferent expiry or renewal dates. Theycome with state-of-the-art encryption that helps in keeping your informationprivate and confidential which safeguards sensitive information againsthackers. Enterprisescan easily connect to Exchange Server through a browser by using the Outlook WebAccess and it does not work anywhere using a self-signed certificate. Theymay be useful in authenticating MS Exchange server to provide assurance to thecustomers that they are dealing with a trusted source. At the same time, byusing an Exchange Server Certificate through a trusted CA Inaddition, there are other benefits that include server and browsercomputability, unlimited server licenses, warranties.

Stepsto follow to get your Microsoft Exchange SSL certificate

Ifyou are planning to buy SSL certificate, then its necessary to have an IPaddress for the different types of certificate that you need to use. Thus, ifyou have multiple and different domain names using one IP address, then youneed to secure them using UCC certificate.

Next,you need to have the certificate signing request or the CSR which needs to be generated onyour web server before you order an SSL certificate. The Certificate Authority willbe able to use the information provided in the CSR for creating yourcertificate.

Selectingan SSL certificate

Thereare different options available in the market and UCC SSL certificates are thebest option suited to the Microsoft Exchange server environments as they arespecifically designed for this purpose.

CertificateSigning request

Onceyou choose the certificate, you will need to get a certificate signing request andfill in all the required information and the CA will go through the details. CSRshould be created on the server on which the certificate is required toinstall. CSR generation will also provide a private key that you need to saveon desktop.

Completeyour order process

Assoon as you complete the CSR, you should complete the configuration process andmake sure to wait for the domain validation mail from the CA.

Waitfor confirmation from CA

Oncethe vetting process is complete, you will be able to receive your Exchange SSLcertificate in email, which may be downloaded to your server. You shouldinstall this certificate on your server.


Businesseswho are implementing Microsoft Exchange Server need to take crucial decisions regardingmanaging their SSL certificates. With Exchange SSL certificate, all domainswill be covered under a single certificate. In addition, security of data andinformation is of prime importance and all enterprises need to ensure that theycan provide a safe browsing experience to their customers and safeguard alltheir personal information ensuring greater privacy and protection at all timesand it can be achieved with Exchange SSL certificate.

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