Hi,

This is my APex class code:

public with sharing class LDController {
    String LeadId;
    String Status;
    Decimal Amount;
    String ApplicationId;
    
    public LoanDecisionController(ApexPages.StandardController controller) {
        LeadId=ApexPages.currentPage().getParameters().get('id'); 
        Lead l =[select id,LastName,Amount_in_Rs__c,Status,Application_Id__c from Lead where id=:LeadId];
        system.debug('Lead id--'+l.id); 
        List<Contact> c = [select id,FirstName,LastName from Contact where LastName=:l.LastName];
        system.debug('contact id --'+c[0].id);
        
        Status = l.Status;
        Amount =l.Amount_in_Rs__c;
        ApplicationId =l.Application_Id__c;
        
    }
    public Void CallBack(){
         String body ='LeadId='+LeadId+'&Status='+Status+'&Amount='+Amount+'&ApplicationID='+ApplicationId+'';
         system.debug('------'+body);
        // Get the XML document from the external server
        Http http = new Http();
        HttpRequest req = new HttpRequest();
        HttpResponse res = new HttpResponse();
        
        req.setEndpoint('http://test/callback.ashx');
        req.setMethod('POST');
        req.setbody(body);
          
        try{
             res = http.send(req);
             String response=res.getBody();
             System.debug('Response '+response);
           }catch(System.CalloutException e) {
               System.debug('Callout error: '+ e);
               }
         }
    }

When i hit the Endpoint URL with Leadid,Status,Amount and ApplicationID then i will get a mail from client side that i am hitting their URL. But now am not getting any mail from their end. Please check the code and tel me if i have change the code.

Thanks..