This might be the issue.sebbata wrote:with regard to the RAM memory, the old server has 128 Go while the new one is only 32Go of which 24 allocated to WM.
If Zimbra was installed with 128 GB of RAM available, the installation script tuned both mysql and the Java Virtual Machine for 128 GB of RAM.
Now there's only 24GB of RAM, the JVM (and mysql) won't be happy.
You should read this and tune the JVM and mysql accordingly: https://wiki.zimbra.com/wiki/Performanc ... eployments