Comodo Unified Communications certificates are technically identical or stronger, come with more value-add features and cost less than those offered by competitors. Additionally, they are approved to work together with Microsoft Exchange Server.
Featuring high strength 2048 bit digital signatures, a secure validation process and unlimited server licenses, Comodo Unified Communications provides a cost effective solution for companies looking to secure their Microsoft based mail servers.
Approved to work with MS Exchange Server
Includes 3 domain names
Trusted by all popular browsers
2048 bit Industry Standard SSL Certificate
Unlimited server licenses
Secures both www and non-www domains
99.9% browser's ubiquity
Supports International Domain Names
Warranty 250,000 $
Secures www and non-www
Unlimited server licenses
Free SiteSeal included
Best suited for companies
Skilled professional support always included
Save more choosing a longer validity period
Choosing a longer validity period for your certificate will allow you not only to save money but also time. In fact, choosing a longer period certificate will save you the hassle to complete the certificate validation process every year as well as save the time to re-install a new certificate at each renewal.
This certificate is available only to registered companies and cannot be issued to privates. Issuance typically happens within the day and doesn’t require a manual callback performed by the Certificate Authority. In fact, the Certificate Authority’s callback is automated and can be initiated by you at anytime. If you are buying this certificate for a webshop or e-commerce, we recommend you having a look at Extended Validation certificates since these represent a better suite for both your business and your (potential) customers.
Once your order has been placed and approved, you will need to configure some administrative details of the certificate (i.e. administrative and technical contact details), as well as the domain name that you wish to secure and the domain validation method.
Validation via email address (only 1 of these 3 is required)
In order to validate the ownership of your domain, you may choose one of the following email addresses that the Certificate Authority will use to send a verification link to. You will later need to confirm the email address by clicking on the verification link and typing a special code provided in the same email.
List of accepted email addresses @ the domain for which the certificate is being applied:
Additionally, you may specify any email address that our systems are able to get from a WHOIS request for the domain you are applying.
Validation via HTTP/HTTPS (only 1 of these 3 is required)
Right after the configuration of your certificate, we will provide you a special file that you will need to place in the root directory of your domain. Such file should be served via HTTP or HTTPS by a webserver and must be available on the Internet publicly.
For instance, assuming the validation file is named 87F494598E849CDBD1314C8239B5C9A1.txt and your domain is www.example.com, you will need to place such file at the address:
Once you have completed the Domain Validation procedure above, it will be time to verify your company registered phone number. The Certificate Authority will call only the phone number registered in Governmental Trusted Databases, such as Duns And Bradstreet or Hoovers. Shall your phone number not be available in such directories, you won’t be able to verify your Company’s phone number. In these cases, we urge you to contact us right after purchasing the Certificate so we may instruct you how to quickly add your phone number to the database.
Provided your phone number is present in the database, the Certificate Authority will send you an email with a link. Following this link you will be redirected to a page with a “Call me now” button. Once you will press it, the Certificate Authority’s robot will immediately call you and provide you some digits to fill in the page.
Once this procedure is completed your certificate will be promptly issued.