Ever since the NST took over development on Neocron, we have been using a combination of TeamCity, SVN, TFS and Slack for continuous integration. Updates to our internal test server (ITS) are deployed every check-in however deployment to the Public Test server is a little more complicated since this still uses the current Neocron patching system, and that tool needed some changes.
Most of the issues have been caused by DNS configuration issues - myself along with Trivaldi have spent a few weeks looking at the config and tweaking it. The reporting is much better now and there is still an outstanding issue that keeps coming up with GMail - for some reason our mail server randomly wants to talk ipv6 with Google servers.