Need help:

I am sending am email when opportunity status is approved. My user is geeting below error. Opportunity: System.LimitException: Too many Email Invocations: 11. Please see my code below and help.

public class OpportunityAfterUpdateHandler implements TriggerDispatcher.ITriggerEntry {
    public void mainEntry(TriggerDispatcher.TriggerParameters tp) {
        List<Opportunity> opptyLstEmail = new List<Opportunity>(); //for email sending
        Map<Id, Opportunity> oldOppMap = (Map<Id, Opportunity>)tp.oldMap;

        for(opportunity opp : (List<Opportunity>)tp.newList) {
            opportunity oldopp = oldOppMap.get(opp.Id);
            system.debug('oldopp'+ oldopp);
            string recordtypename = Schema.SObjectType.Opportunity.getRecordTypeInfosById().get(opp.recordtypeid).getname();
            system.debug('recordtypename' + recordtypename);
            system.debug('Approved_Rejected__c' + opp.Approved_Rejected__c);
            system.debug('approval authority level' + opp.Approval_Authority_Level__c);


            if(recordtypename == 'Approved' && opp.Approved_Rejected__c=='Approved' && opp.Approval_Authority_Level__c != 'Manager' &&  (opp.Approved_Rejected__c != oldopp.Approved_Rejected__c))
            {
                opptyLstEmail.add(opp);
                system.debug('opptesting' + opp);
                Sendemailforoppty.SendingEmail(opptyLstEmail);
            }
            if(recordtypename == 'Other' && opp.Approved_Rejected__c=='Rejected' && opp.Approval_Authority_Level__c != 'Manager' &&  (opp.Approved_Rejected__c != oldopp.Approved_Rejected__c))
            {
                opptyLstEmail.add(opp);
                system.debug('opptesting' + opp);
                Sendemailforoppty.SendingEmail(opptyLstEmail);
            }
        }
    }