gistfile1.txt

trigger taskAfterUpdateAndInsert on TASKRAY__Project_Task__c (after insert, after update) {
    for(TASKRAY__Project_Task__c  task: Trigger.new){

      if((task.TASKRAY__List__c == 'Finished') && (Trigger.IsInsert || (Trigger.Isupdate && (Trigger.OLdmap.get(task.id).TASKRAY__List__c <> 'Finished'))) ){
        Datetime dt = Datetime.now();    
        Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage(); 
        String[] toAddresses = new String[] {'[email protected]'};   
        mail.setToAddresses(toAddresses);
        mail.setReplyTo('[email protected]');    
        mail.setSenderDisplayName('basati test');
        mail.setSubject('basati test');
        mail.setCharset('UTF-8');

        mail.setHtmlBody('test at '+String.valueOf(dt.getTime()));
        Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });
      }
    }
}