title: magento transactional e-mail don't work after upgrade
body: <p>My Magento shop doesn't send e-mails after upgrading 1.4.1 to 1.6.2. We changed the location of the magento files from /magento-1.4 to the root during the upgrade.</p>
  
  <p>The server hasn't changed and other installations on the same server are able to send magento mails. </p>
  
  <p>Mail configuration hasn't changed since the previous installation. I've checked them and they all seem fine.
  Any suggestions?</p>