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To use this featureinterface, hosting providers must perform the following actions:

  • Allow domain creation in WHM's Modify an Account interface (WHM >> Home >> Account Functions >> Modify an Account).
  • Enable at least one of the following features in WHM's Feature Manager interface (WHM >> Home >> Packages >> Feature Manager):
    • Addon Domains
    • Subdomains
    • Aliases
    • Subdomains


The Mail Node server configuration only displays the Domains interface for cPanel accounts. It does not display the Addon DomainsSubdomains, or Aliases interfaces.

The cpuser_port_authority script

In cPanel & WHM version 76, we added the /usr/local/cpanel/scripts/cpuser_port_authority script. This script allows system administrators to assign ports to a user's account. 


  • We removed the legacy /usr/local/cpanel/bin/dovecot-auth and the /usr/local/cpanel/bin/dovecot-wrap binaries. The system now uses the more efficient DICT lookups.

  • When you upgrade to cPanel & WHM version 76, the system invalidates the .local Dovecot  Dovecot® configuration template (for example, (/var/cpanel/templates/dovecot2.2/main.local) that references the deprecated /usr/local/cpanel/bin/dovecot-wrap binary. If a system's .local Dovecot configuration template references this binary, the system saves its .local template then rebuilds the .local file with the standard template. You must reapply your customizations to the new.local template. For more information about Dovecot customizations, read our Mailserver Configuration documentation.

    • We strongly recommend that you back up any .local template customizations before you upgrade. 
    • If you use the /var/cpanel/templates/dovecot2.2/main.local file to override the default Dovecot configuration template, you must merge the changes in the /usr/local/cpanel/src/templates/dovecot2.2/main.default file when you upgrade to cPanel & WHM version 76; otherwise you will lose your customizations.
    • You should verify that your prior customizations will function version 76. For more information, read our Mailserver Configuration documentation.