if (mail($to, $subject, $body)) {
  echo("<p>From: $name\n Company: $company\n Address: $address\n Phone: $phone\n Email: $email\n Comments: $comments\n</p>
  
  
  Testing 1: $name_1\n
  Checkboxes 1:\n Sample $sample_1\n MSDA: $msda_1\n Tech Data: $tech_1\n
  
  Testing 2: $name_2\n
  Checkboxes 2:\n Sample $sample_2\n MSDA: $msda_2\n Tech Data: $tech_2\n

  Testing 3: $name_3\n etc etc
  
  ");
 } else {
  echo("<p>Message delivery failed...</p>");
 }