Hi,

 am trying to send the mass email to contacts.I am getting the error as  below.Am doing this in a DE org.

System.EmailException: SendEmail failed. First exception on row 0; first error: NO_MASS_MAIL_PERMISSION, Single email is not enabled for your organization or profile. Single email must be enabled for you to use this feature.

My coding as  below

 private final List<Id> contactids;
  public List<Contact> con;
  public testemail(ApexPages.StandardController controller)
  {
     con = [select Id from Contact limit 5];    
     contactids=new  List<Id>();     
     for(Integer i=0;i<con.size();i++)
     {    
      contactids.add(con[i].Id);       
     } 
  }

  public void SendEmail()
  {
      Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage();
      mail.setTargetObjectIds(contactids);   
      mail.setTemplateId('00X90000000ZQgA');
      Messaging.sendEmail(new Messaging.MassEmailMessage[] { mail });
  } 

  Can anybody tell me how to enable single email/mass email?

  Thanks  for any help

We've been struggling with getting a zipped static resource to work for weeks now. We got Salesforce Support involved from the beginning, but they've gotten us nowhere. If we can't get a resolution to this issue soon, we might just find a platform that wastes less of our time...

Here is the situation - we are trying to upload a portion of the YUI library as a static resource, but no matter what we try, we can't get the files to render in our VisualForce pages. Salesforce Support can get it to work (sometimes), but we can't. The difference seems to be around the MIME Type that is set when the file is uploaded. When we upload the file, it gets set to a MIME Type of 'application/zip', but when SFDC Support uploads the file, it gets set to a MIME Type of 'application/x-zip-compressed' or 'application/octet-stream'. Salesforce can't explain to us exactly why or how these different MIME Types get set. They're looking into why our uploads don't work, but I'm not expecting much from them at this point.

To reproduce our steps: