PMDF Pine uses PMDF extensively. PMDF must be installed and
    configured on the system for Pine to function. Pine uses PMDF
    to send mail, to parse addresses, and to save copies of messages
    you have sent, if the Pine DEFAULT-FCC option is set. Once PMDF
    is configured and installed on a system, PMDF Pine is usually
    ready for use, although see under PMDF Pine System_configuration
    UCX Emulation and PMDF Pine System_configuration Subprocess Quota
    for descriptions of two installation issues to check, and see
    under PMDF Pine System_configuration Configuration Files for a
    description of tailoring the Pine environment on a system wide
    basis.

    In particular, note that Pine does not, by default, use IMAP
    to talk to your local system, so it is not necessary to have
    an IMAP server running on your system just to use Pine. (Only
    if a user were to specifically request that Pine treat the
    local system as if it were instead a remote system with an IMAP
    server, by specifying the IMAP-HOST field when accessing a folder
    collection, would PMDF Pine attempt to make an IMAP connection to
    the local system.)

    Pine is installed by PMDF with the privileges SYSPRV and CMKRNL.
    Without those privileges, users can not send mail, although they
    can still read mail.