OrgWideEmailAddress Used to Send the Email Using our own Mail ID

//Set Own Email address as From address as well as Reply to Email

  1) Go to Administration setup -> Email Administration ->Org Wide Email Address
 
  2) Add New Email Address with Name in Org Wide Email Address
 
  ex
 
  Display Name :Raja
  Email :xxx@gmail.com
 
  3)Then go to Send Email Code Part
 
  Sample Code
   
  OrgWideEmailAddress[] owea = [select Id from OrgWideEmailAddress where Address = 'xxx@gmail.com'];
 
                         
                            Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
                            String[] toAddresses = new String[]{emailLead.Email};
                           
                            mail.setOrgWideEmailAddressId(owea.get(0).Id);
                            mail.setToAddresses( toAddresses );
                            mail.setSubject('Welcome to xxx!');                      
                           
                            StaticResource[] leadEmailNormalTemp = [SELECT Id, Body FROM StaticResource WHERE Name = 'LeadEmailTemplate'];
                            StaticResource[] leadEmailMobileTemp = [SELECT Id, Body FROM StaticResource WHERE Name = 'LeadMobileEmailTemplate'];
                          
                            mail.setHtmlBody((leadEmailMobileTemp[0].Body).toString());
                            newMail.add(mail);