There are conn-XXX (where XXX = connection id) files in the /var/spool/icap folder. What are these files?
conn-XXX (where XXX = connection id) file(s) is created during ICAP/Web connection when an ICAP request data is greater than 30MB. This file should be deleted once the connection is closed.
The files are in the /var/spool/icap folder, unless the Icap.SpoolFolder is specified as a different directory.