title: Link not working in yahoo mail
body: <p>While sending email from java to Yahoo mail , the link inside is not working.
  URL not clickable in Yahoo while it's fine in Gmail. </p>
  
  <p>Here's code to send the mail:  </p>
  
  <pre><code>MimeMessage mime = this.mailSender.createMimeMessage();
  MimeMessageHelper message = new MimeMessageHelper(mime, true);
  message.setTo(to);
  message.setSubject(subject);
  message.setText("verification link: http://localhost:8080/myproject/verification.zulverId=6c1", true);
  this.mailSender.send(mime);
  </code></pre>