Name: uidbatches_max_messages
Type: INT
Default-Value: 100000
Last-Modified: 3.13.1

The maximum number of messages that the server will process in a single
UIDBATCHES command - either the number of requested batches multiplied by
the batch size, or the number of messages in the mailbox if all batches are
requested.  The default of 100000 is the minimum allowed value per the
specification.
