I tend to disagree. It supports 5.6 like Clinton did with the Honduras coup or Benghazi..... With php 5.6 it will run the site, ldap, and most other things, but it will not properly link with the smtp function. I have browsed these forums and the internet for quite a while searching for the solution to the starttls error. It keeps coming back to the php version, in which people suggested editing the php.ini file amongst other php config files. I have done this. In the end the only solution I have found to work was to downgrade to php5.5 or 5.4. If there is workable solution to the starttls error with php5.6 please let me know and how to fix this issue.