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Installing the cPanel Plugin

To install our cPanel plugin, follow these steps:
  1. Ensure you have root access to your cPanel server.
  2. Generate a smarthost (or use an existing one) in your JetEmail dashboard.
  3. Open a terminal or SSH into your server.
  4. Download the installation script and set the correct permissions: 
curl -O https://cdn.jetemail.com/plugins/cpanel/install-jetemail.sh
chmod 755 install-jetemail.sh
  1. Run the installation script with your JetEmail credentials. Additional optional parameters are available:
    • -u: Your JetEmail smarthost username (required)
    • -p: Your JetEmail smarthost password (required)
    • -d: Enables Domain Lockdown for all domains
    • -s: Modifies SPF Records to include spf.jetsmtp.net for all domains
./install-jetemail.sh -u USERNAME -p PASSWORD # Basic installation
# OR
./install-jetemail.sh -u USERNAME -p PASSWORD -d # With domain lockdown
# OR
./install-jetemail.sh -u USERNAME -p PASSWORD -s # With SPF modification
# OR
./install-jetemail.sh -u USERNAME -p PASSWORD -d -s # With both options
Example: 
./install-jetemail.sh -u smarthostusername -p password -d -s
  1. The script will automatically download and install the plugin.
  2. Once completed, the plugin will be active and configured for use.

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What the Plugin Does

The plugin automatically configures several email authentication and security settings:
  1. Adds spf.jetsmtp.net to the additional hosts section of Exim configuration
  2. Configures JetEmail’s inbound IP addresses in:
    • senderverifybypass list
    • trustedips list
  3. If Domain Lockdown is enabled (-d flag), adds a _jm TXT record to all domains for verification
  4. If SPF modification is enabled (-s flag), enables and configures SPF records for all domains
  5. Enables and configures DMARC records for all domains
  6. Makes additional Exim configuration changes:
    • Enables SRS (Sender Rewriting Scheme)
    • Disables remote HELO checks

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Uninstalling the cPanel Plugin

To uninstall the JetEmail cPanel plugin and revert all configuration changes:
  1. Ensure you have root access to your cPanel server.
  2. Open a terminal or SSH into your server.
  3. Download the uninstallation script and set the correct permissions: 
curl -O https://cdn.jetemail.com/plugins/cpanel/uninstall-jetemail.sh
chmod 755 uninstall-jetemail.sh
  1. Run the uninstallation script:
./uninstall-jetemail.sh
  1. The script will automatically remove all JetEmail configurations and restore your original email settings.
Note: The uninstall process will revert all changes made during installation, including:
  • Removing JetEmail smarthost configuration
  • Restoring original Exim settings
  • Removing any added SPF and DMARC records
  • Removing Domain Lockdown TXT records
  • Restoring original sender verification and trusted IP settings