Introduction

cPanel provides multiple webmail applications such as Horde, Roundcube, and SquirrelMail. In some cases, administrators may want to restrict users to a specific webmail client and disable others for simplicity or security reasons.

Prerequisites

Before proceeding, ensure the following:

  • Root or SSH access to the server
  • WHM access (for server-wide changes)
  • Basic knowledge of Linux command line
  • cPanel/WHM installed and running

Implementation

Option 1: Enable/Disable Webmail for a Specific User

Step 1: Login via SSH

Access your server using SSH.

Step 2: Navigate to User Configuration Directory

cd /var/cpanel/users/

Step 3: Edit the User File

Replace testuser with the actual cPanel username:

vi testuser

Step 4: Add or Modify the Following Lines

skiphorde=0
skipsqmail=1
skiprcmail=1
  • 0 = Enable
  • 1 = Disable

Example:

  • Horde → Enabled
  • SquirrelMail → Disabled
  • Roundcube → Disabled

Step 5: Restart cPanel Service

/etc/init.d/cpanel restart

Option 2: Enable/Disable Webmail Server-Wide

Step 1: Login to WHM

Step 2: Navigate to Settings

  • Go to Server Configuration
  • Click on Tweak Settings

Step 3: Configure Mail Options

  • Switch to the Mail tab
  • Disable:
    • Roundcube
    • SquirrelMail

Step 4: Save Changes

Click Save to apply the configuration.

Notes
  • These changes affect only the webmail interface visibility, not email functionality
  • SquirrelMail is deprecated in newer cPanel versions and may not be available
  • Restarting cPanel is required for user-level changes to take effect
  • Always take a backup before editing system files

Conclusion

By configuring user-level or server-wide settings, administrators can control which webmail applications are available in cPanel. This helps standardise the user experience and simplify email access for clients.

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