How to fix 'Problem parsing XML' / '500 server error' in the Zimbra frontend
sysadmin zimbra zcs en
Today I came across an error that damn near made me rip my hair out. I couldn’t find an english article on how to solve it, and having to translate something while you’re frantically troubleshooting is not a great experience, so I decided to write it down here.
TL;DR Check if you have a malformed zimbraHttpThrottleSafeIPs entry in your config, and delete it directly from LDAP.
What happened? Not much! I just installed a new TLS certificate and restarted Zimbra, nothing special - until I realized that both the normal user interface and the admin interface had stopped working with a message like “500 Internal server error”.
Read more...