whole_func_string: function getEmailForwardingSupportedDomains( domains ) {
  	return domains.filter( function( domain ) {
  		const domainHasGSuite = hasGSuite( domain );
  		const wpcomHosted =
  			includes( [ domainTypes.REGISTERED ], domain.type ) && domain.hasWpcomNameservers;
  		const mapped = includes( [ domainTypes.MAPPED ], domain.type );
  		return ( wpcomHosted || mapped ) && ! domainHasGSuite;
  	} );
  }
func_code_string: function getEmailForwardingSupportedDomains( domains ) {
  	return domains.filter( function( domain ) {
  		const domainHasGSuite = hasGSuite( domain );
  		const wpcomHosted =
  			includes( [ domainTypes.REGISTERED ], domain.type ) && domain.hasWpcomNameservers;
  		const mapped = includes( [ domainTypes.MAPPED ], domain.type );
  		return ( wpcomHosted || mapped ) && ! domainHasGSuite;
  	} );
  }
func_documentation_string: Filters a list of domains by the domains that eligible for Email Forwarding
  
  @param {Array} domains - list of domain objects
  @returns {Array} - Array of Email Forwarding supported domans