The settings are part of the COS
# zmprov getCos default|grep -i dumpster
zimbraDumpsterEnabled: TRUE
zimbraMailDumpsterLifetime: 30d
I'm not sure what the default is, as I raised mine and don't recall what the original value was set to.
But you can change it with "zmprov modifyCos <name|id> <attribute> <value>"
Example:
zmprov modifyCos default zimbraMailDumpsterLifetime 14d |