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       imtest - interactive IMAP test program


       imtest [ -t keyfile ] [ -p port ] [ -m mechanism ]
              [ -a userid ] [ -u userid ] [ -k num ] [ -l num ]
              [ -r realm ] [ -f file ] [ -n num ] [ -s ] [ -c ]
              [ -i ] [ -z ] [ -v ] [ -I file ] [ -x file ]
              [ -X file ] [ -o option=value ] hostname


       imtest  is  a utility that allows you to authenticate to a IMAP or IMSP
       server and interactively issue commands to it. Once  authenticated  you
       may  issue  any  IMAP  or  IMSP  command  by simply typing it in. It is
       capable  of  multiple  SASL  authentication  mechanisms   and   handles
       encryption layers transparently. This utility is often used for testing
       the operation of a imsp or imap  server.  Also  those  developing  IMAP
       clients find it useful.


       -t keyfile
              Enable  TLS.   keyfile contains the TLS public and private keys.
              Specify "" to negotiate a TLS encryption layer but not  use  TLS

       -p port
              Port to connect to. If left off this defaults to imap as defined
              in /etc/services.

       -m mechanism
              Force  imtest  to  use  mechanism  for  authentication.  If  not
              specified  the  strongest  authentication mechanism supported by
              the server is chosen.  Specify login to use  the  LOGIN  command
              instead of AUTHENTICATE.

       -a userid
              Userid  to use for authentication; defaults to the current user.
              This is  the  userid  whose  password  or  credentials  will  be
              presented to the server for verification.

       -u userid
              Userid  to  use for authorization; defaults to the current user.
              This  is  the  userid  whose  identity  will  be  assumed  after
              authentication.   NOTE:  This  is only used with SASL mechanisms
              that allow proxying (e.g. PLAIN, DIGEST-MD5).

       -k num Minimum protection layer required.

       -l num Maximum protection layer to use (0=none; 1=integrity; etc).  For
              example   if   you  are  using  the  KERBEROS_V4  authentication
              mechanism specifying 0 will force imtest to not  use  any  layer
              and  specifying  1 will force it to use the integrity layer.  By
              default the maximum supported protection layer will be used.

       -r realm
              Specify the realm  to  use.  Certain  authentication  mechanisms
              (e.g. DIGEST-MD5) may require one to specify the realm.

       -f file
              Pipe file into connection after authentication.

       -n num Number of authentication attempts; default = 1.  The client will
              attempt to do SSL/TLS session reuse  and/or  fast  reauth  (e.g.
              DIGEST-MD5), if possible.

       -s     Enable IMAP over SSL (imaps).

       -c     Enable  challenge  prompt  callbacks.   This  will cause the OTP
              mechanism to ask for the the one-time password  instead  of  the
              secret pass-phrase (library generates the correct response).

       -i     Don't  send an initial client response for SASL mechanisms, even
              if the protocol supports it.

       -I file
              Echo the PID of the running  process  into  file  (This  can  be
              useful with -X).

       -x file
              Open the named socket for the interactive portion

       -X file
              Like  -x,  only  close  all  file  descriptors  &  daemonize the

       -o option=value
              Set the SASL option to value.

       -v     Verbose. Print out more information than usual.

       -z     Timing test.