Cloud Edge acts as a private Certificate Authority (CA) and generates certificate for SSL decryption, which applies to SMTPS, POP3S, IMAPS, and HTTPS. However, the default certificate is not signed by a well-known (trusted) CA on the Internet. In this case, end users' browsers always display a certificate warning every time they access an HTTPS website.

To avoid getting the certificate warning, end users need to download and install the CA certificate provided by Cloud Edge on supported browsers.

The following table outlines how to install the CA certificate to the supported browsers.


The following browser setting instructions were valid as of July 2023.




Google Chrome™

Microsoft Edge™ (Chromium-based)

Newest and most recent previous version


This task uses Windows 10 as an example.

  1. Open the certificate file.

  2. Click Install Certificate.

    The Certificate Import Wizard opens.

  3. Click Next.

  4. Select Place all certificates in the following store and click Browse.

  5. Select Trusted Root Certification Authorities and click OK.

  6. Click Next, and then click Finish.

Mozilla® Firefox®

Newest and most recent previous version

  1. Click the Open menu icon in the top-right corner of the browser, and then select Settings.

  2. Click the Privacy & Security tab.

  3. Under Certificates, click View Certificates and then select Authorities.


    You cannot import the certificate to both the server and authorities. If the certificate is already imported to the server, delete it.

  4. Click Import.

  5. Navigate to the download folder and select the certificate file.

  6. Select Trust this CA to identify websites and then click OK.