The following property is introduced:

# Defines a hard limit when marshalling elements in WebDAV responses
# recursively. This applies to all WebDAV responses with a depth >= 1,
# including CardDAV and CalDAV. This setting is not meant as a quota
# restriction, instead it is meant to protect against possibly very large
# responses. Defaults to 250000, a value of 0 or smaller disables the
# limitation.
com.openexchange.webdav.recursiveMarshallingLimit= 250000