Enabling Roundcube webmail in WHM (Web Host Manager) includes a simple process. Here are the step-by-step instructions for enabling Roundcube webmail if it is currently disabled:
Step1: Login to WHM: Use your administrator credentials to log in to WHM. You can usually do this by going to https://yourserverip:2087 or https://yourdomainname/whm in your web browser.
Step2: Go to Home >> Server Settings >> Tweak Settings.
Step3: Find the Enable Roundcube webmail option.
Step4: Make sure the option is set to ON. If set to OFF, it should be changed to ON.
Step5: Click Save.