Using Your Own SSL Certificate

Revision as of 08:22, 30 November 2010 by Admin (talk | contribs)


During the installation of MailStore Server, an SSL certificate is generated which MailStore Web Access/Outlook Add-In can use for access via HTTPS. Since the certificate is issued to the server name MailStoreServer and does not come from a reliable certification authority (CA), it is not trusted by the client side.


Because of this, the following warning message is displayed when calling up MailStore Web Access via HTTPS (SSL):


One option for resolving this issue is to make the server on which MailStore Server is installed available under the host name MailStoreServer (e.g. by adding and A or CNAME record in the DNS) and installing the certificate in the container of trusted root certification authorities on the clients. Because these installations involve a relatively high administrative overhead, MailStore Server provides the option to use signed certificates of your own company CA or certificates of a public certification provider (e.g. VeriSign, eTrust etc.).

To configure MailStore Server for the use of your own certificate, please proceed as follows:

Installing the Certificate

  • Log on to the server as administrator.
  • Click on Start | Execute.
  • Execute the command mmc.
  • Select File | Add/Remove Snap-In | Add | Certificate.
  • Select Local Computer Account and then Local Computer.
  • Click on Finish and close any open dialog windows.
  • In the management console, select My Certificates | Certificates.
  • Right-click on the folder Certificates and select All Tasks | Import.
  • Follow the instructions in the wizard and select the file containing the certificate and the private key, if applicable.
  • On the page Certificate Store select the container My Certificates and finish the wizard.
  • The certificate is now shown in the container My Certificates.
  • To verify this and to make sure that the private key for the certificate is available, open the certificate with a double-click.

Using the Certificate with MailStore Server

  • Open the MailStore Server base configuration.
  • Select Web Access/Outlook Add-in and click on Configure HTTP/HTTPS Access.
  • Click on Select Certificate and choose the new certificate.
  • Confirm your entries and restart the MailStore Server service.