title: For those running web apps and websites with transactional emails, how much do they affect your server?
body: <p>I'm doing a little research on the matter, because I am genuinely curious how do transactional emails affect server load and resources? I guess to help answer the question, I'm looking for the following:</p>
  
  <ul>
  <li>How many emails do you send out on a monthly basis from transactions? (Sign-ups, achievements, that kind of stuff)</li>
  <li>How does it affect your server load? Do you find that you have to dedicate a separate SMTP server box?</li>
  <li>How have you optimized for transactional emails?</li>
  <li>Would it have been easier to get a hosted solution?</li>
  </ul>
  
  <p>Appreciate any responses!</p>