Caused by: java.sql.SQLException: Server connection failure during transaction. Due to underlying exception: 'java.sql.SQLException: Access denied for user 'zimbra'@'mail.dotslashroot.net' (using password: YES)'.
You change your hostname, or your /etc/hosts file? You'll need to make sure that the user zimbra at the host above has access to the zimbra database, do a google on the mysql grant command. password can be found via zmlocalconfig -s | grep sql |