function undeliveredEmailNotifications(context) {
    	        	
    	// Number of seconds' worth of time to check for undelivered emails.        	
    	var seconds = 14400; // Four hours
    	//seconds = 604800; // one week
    	//seconds = 1296000; // two weeks

    	// Start by getting the names & email addresses of all current employees 
    	// so we can check for emails sent by them that were undelivered.
    	var employee_search = search.create({
			type: 'employee',
			filters: [
				['isinactive', 'is', 'F'], 
				'AND', 
				['hiredate', 'onorbefore', 'today'], 
				'AND', 
				[['releasedate', 'isempty', ''], 'OR', ['releasedate', 'after', 'today']]
			],
			columns: [
				search.createColumn({name: 'internalid', label: 'ID'}),
				search.createColumn({name: 'entityid', label: 'Name'}),
				search.createColumn({name: 'email', label: 'Email'})
			]
		});
    	
    	var employees = [];
    	
    	employee_search.run().each(function(result) {
    		
    		employees[result.getValue('entityid')] = {internalid: result.getValue('internalid'), email: result.getValue('email'), undelivereds: []};
    		return true;
    		
    	});
    			    			
    	if(log_level == 1) log.debug({title: 'undeliveredEmailNotifications', details: 'employees: ' + JSON.stringify(employees)});    
    	
    	// Add a catch-all for any emails "sent from" something that doesn't look like
    	// the name of an employee.
    	employees['catchall'] = {email: 'catchall', undelivereds: []};
    	
    	// Search undelivered emails.
    	var undelivered_email_search = search.create({
			type: 'undeliveredemail',
			filters: [['formulanumeric: (CAST(current_date AS DATE) - CAST({sentdate} AS DATE)) * 86400', 'lessthanorequalto', seconds]],
			columns: [
				search.createColumn({name: 'sentdate', label: 'Sent Date'}),
				search.createColumn({name: 'reason', label: 'Reason'}),
				search.createColumn({name: 'subject', label: 'Subject'}),
				search.createColumn({name: 'from', label: 'From'}),
				search.createColumn({name: 'recipients', label: 'Recipients'})
			]
		});
    	
    	// For each undelivered email, add it to the list for the employee who sent it.
    	// Also add it to mt list if not already there...
    	undelivered_email_search.run().each(function(result) {
    		
    		var from_string = result.getValue('from');
    		    		
    		var from_name = '';
    		var from_email = '';
    		
    		// Remove quote marks (in case there are some).
    		from_string = from_string.replace(/"/g,"");
    		
    		// Separate out the NAME from the EMAIL (e.g. Bob Smith <bob@smith.com>)
    		if(from_string.indexOf('<') !== -1) {
    			
    			var from_string_parts = from_string.split('<');    			
    			from_name = from_string_parts[0].trim();    			
    			from_string_parts = from_string_parts[1].split('>');
    			from_email = from_string_parts[0].trim();
    			
    		} else {
    			
    			from_name = from_string;
    			from_email = from_string;
    			
    		}
    		
    		if(log_level == 1) log.debug({title: 'undeliveredEmailNotifications', details: 'Found an undelivered email from ' + from_name});
    		
    		// Check to see if this is an identified employee name.
    		if(employees[from_name] != null) {
    			
    			employees[from_name].undelivereds.push({
    				from: from_string,
    				sentdate: result.getValue('sentdate'),
    				reason: result.getValue('reason'),
    				subject: result.getValue('subject'),
    				recipients: result.getValue('recipients')
    			});
    			
    		} else {
    			
    			// Add to the catch-all.        			
    			employees['catchall'].undelivereds.push({
    				from: from_string,
    				sentdate: result.getValue('sentdate'),
    				reason: result.getValue('reason'),
    				subject: result.getValue('subject'),
    				recipients: result.getValue('recipients')
    			});
    			
    		
    		}
    		
    		return true;
    		
    	});
    			
    	// Send notifications to employees that their emails bounced.
    	for(var employee_name in employees) {
    			    			
    		if(log_level == 1) log.debug({title: 'undeliveredEmailNotifications', details: 'employee_name is ' + employee_name});    	
    		
    		// What is their ID?
    		var internalid = <my_id>; // catchall email goes to me.
    		
    		if(employee_name != 'catchall')
    			internalid = employees[employee_name].internalid;
    		    		
    		// Did they get any bounces?
    		if(employees[employee_name].undelivereds.length > 0) {
    			    			
    			if(log_level == 1) log.debug({title: 'undeliveredEmailNotifications', details: employee_name + ' has undelivereds'});
    			
    			// Build the message.
    			var subject = 'Undelivered Email: ' + employee_name;    			
    			var body = 'The following recent email sent through NetSuite was undelivered:<br/><br/>';
    			
    			if(employees[employee_name].undelivereds.length > 1) {
    				
    				subject = 'Undelivered Emails: ' + employee_name;
    				body = 'The following recent emails sent through NetSuite were undelivered:<br/><br/>';
    				
    			}
    			    			
    			for(var i = 0; i < employees[employee_name].undelivereds.length; i++) {
    				
    				body += 'Date: ' + employees[employee_name].undelivereds[i].sentdate + '<br/>';
    				body += 'From: ' + employees[employee_name].undelivereds[i].from + '<br/>';
    				body += 'Subject: ' + employees[employee_name].undelivereds[i].subject + '<br/>';
    				body += 'Recipients: ' + employees[employee_name].undelivereds[i].recipients + '<br/>';
    				body += 'Reason: ' + employees[employee_name].undelivereds[i].reason + '<br/><br/>';
    				
    			}
    			    			
    			if(log_level == 1) log.debug({title: 'undeliveredEmailNotifications', details: 'sending an email from Jen to ' + internalid + ' with body ' + body});
    			              
    			email.send({
    				author: netsuite_notifications,
    				recipients: internalid,
    				subject: subject,
    				body: body
    			});
    			
    		}
    		
    	}
    	
    }