Undelete functionality in Triggers

Trigger AccountTrigger on Account(after undelete){
    List<Contact> conList=new List<Contact>();
    for(Account a:Trigger.new){
        Contact c1=new Contact();
        c1.LastName=a.Name;
        c1.Email=a.Email__c;
        conList.add(c1);
       
    }
   insert conList;
}