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We had exactly the same issue. And I saw that the files had the wrong permissions (executable instead of writeable). Version: 8.7.11_GA_3800.NETWORK I did the following (as root); cd /opt/zimbra/mailboxd find webapps -type d -exec chmod 0755 {} \; find webapps -type f -exec chmod 0644 {} \; Then re...

Hi,

same with my problem, is your problem resolved?
iam using zimbra 8.7.3

Thank you.

Hi all,

Thanks for your help.
This problem is fixed now. The problem is my server port 8443 is used by plesk and conflict with zimbra. I reinstall zimbra and chaged the port 8443 to 8445.

Is this multi-server or single server installation? Please send me an output of following commands? (they need to be run via zimbra user) zmprov gs `zmhostname` zimbraReverseProxyMailMode zmprov gs `zmhostname` zimbraMailMode and check to find out any log messages related to this error in nginx.acc...

Hi, I installed zimbra 8.7.10 and after the installation zimbra run normally but after I restart my zimbra error server like that : HTTP ERROR 502 Problem accessing ZCS upstream server. Cannot connect to the ZCS upstream server. Connection is refused. Possible reasons: upstream server is unreachable...