Name: defaultpartition
Type: STRING
Default-Value: NULL
Last-Modified: 2.3.17

The partition name used by default for new mailboxes.  If not specified,
the partition with the most free space will be used for new mailboxes.

Note that the partition specified by this option must also be specified as
*partition-name*, where you substitute 'name' for the alphanumeric string
you set *defaultpartition* to.
