We have solved the issue with the new NinerNet SSL certificate not fully propagating to all servers. All SSL web and email connections should now be using the new SSL certificate, which expires in 2015.
If you are having any issues, please restart your computer to ensure that all software on the computer uses the new SSL certificate. If you still have problems, please contact NinerNet support with a full description of the error message you are seeing.
Thank-you for your patience.