title: Send emails with international accent and special characters
body: <p>I am sending a newsletter via PHP mail() in Spanish, they have accents and special characters (which I'm going to try to paste here: á, í, é, ñ ...).</p>
  
  <p>For the HTML version of the email, I think I solved the issue by printing <code>&amp;#225;</code>, <code>&amp;#233;</code> ...</p>
  
  <p>However for the plain text version, I assume I can't put those, right?</p>
  
  <p>What is the best thing to do, both for the HTML and plain text version?
  Later, I might have to send emails in more complex languages such as hebrew or chinese ...</p>
  
  <p>Thanks!</p>