PHP 5.6 made some changes to OpenSSL stream wrappers - it now verifies
SSL certificates by default and seems in webuzo if you use email managed in the VPS from Webuzo you have mismatch problem with the STARTTLS.
So this cause problem if you are using CMS problem in notification email but also in ticket system because sever php go on error with the mismatch email problem.
So will wait for a solutions.
For now I'M forced to not update to PHP 5.6 and this is not very good for security - for now is OK because is only few time .. but please .. think to a solution. I will wait here.
No other user had issue with this problem in PHP and webuzo mail manager?
For example i have configured some personal email who not work in all email client software because mismatch certificate. I can use only with Thunderbird but i have to add and exceptions for certificate mismatch.
I use my personal email managed by webuzo to manage a webticket system who are checking and sending email from the webuzo managed email so i can't use PHP 5.6 until there are no a solution for this.