title: Is the ampersand sign a valid character for an Exchange email address?
body: <p>I am trying to find out if the ampersand character "&amp;" is a valid character for a Microsoft Exchange email address.  I know it is valid according to the RFC but I am thinking that exchange has a subset of valid characters.  </p>
  
  <p>Example:</p>
  
  <p>Tom&amp;Jerry@warnerbrothers.com</p>