code: function getEligibleEmailForwardingDomain( selectedDomainName, domains = [] ) {
  	const eligibleDomains = getEmailForwardingSupportedDomains( domains );
  	let selectedDomain;
  	if ( selectedDomainName ) {
  		selectedDomain = eligibleDomains.reduce( function( selected, domain ) {
  			return domain.name === selectedDomainName ? domain.name : selected;
  		}, '' );
  	}
  	return selectedDomain || ( eligibleDomains.length && eligibleDomains[ 0 ].name ) || '';
  }
docs: Retrieves the first domain that is eligible for Email Forwarding either from the current selected site or the list of domains.
  
  @param {String} selectedDomainName - domain name for the site currently selected by the user
  @param {Array} domains - list of domain objects
  @returns {String} - Eligible domain name