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       FUD - provide information about user mailboxes


       fud [ -C config-file ] [ -U uses ] [ -T timeout ] [ -D ]


       FUD  is  a  long  lived  datagram  daemon  started  from cyrmaster that
       provides information about when a user last read their mail, when  mail
       last  arrived in a user's mailbox, and how many messages are recent for
       that user.

       Note that for FUD to  run  properly  you  must  set  proto=udp  in  its
       cyrus.conf  services  entry.   prefork=1 is also recommended.  FUD will
       automatically proxy any and all FUD requests to the appropriate backend
       server if it is runing on a Cyrus Murder frontend machine.

       FUD  reads  its  configuration  options  out  of the imapd.conf(5) file
       unless specified otherwise by -C.


       -C config-file
              Read configuration options from config-file.

       -U uses
              The maximum number of times that the process should be used  for
              new connections before shutting down.  The default is 250.

       -T timeout
              The  number  of  seconds  that  the  process will wait for a new
              connection before shutting down.  Note that a value of 0  (zero)
              will disable the timeout.  The default is 60.

       -D     Run external debugger specified in debug_command.


              Default configuration file.

              Cyrus Master process configuration file.


       Though  not really a bug, FUD will silently ignore any requests that it
       does not consider valid.

       Also not really a bug, FUD requires that the anonymous user has  the  0
       (zero)  right on the mailbox in question.  This is only a "bug" because
       0 is not a standard IMAP ACL bit.

       FUD is an experimental interface meant to provide information to  build
       a  finger-like service around.  Eventually it should be superceded by a
       more standards-based protocol.