title: UTL_SMTP.Write_Data not sending any text if a colon is included
body: <p>I have created a Oracle function to send an email using the UTL_SMTP package.</p>
  
  <p>When using the methods <strong>Write_Data</strong> or <strong>Data</strong>, if my text does not contain a colon, the sent email will contain the inputted text in the email's body.</p>
  
  <p>However, if the text contains a colon, the text is not included in the email.</p>
  
  <p>Every example of this i've seen online seems to indicate this is no problem.  Any idea what could be the cause of this?</p>
  
  <p>This works: <code>UTL_SMTP.write_data(l_mail_conn, 'test');</code></p>
  
  <p>This does not get sent: <code>UTL_SMTP.write_data(l_mail_conn, 'test:');</code></p>
  
  <p>nor does: <code>UTL_SMTP.write_data(l_mail_conn, 'test' || ':');</code></p>