NAME

       mu-verify - verify message signatures and display information about them

SYNOPSIS

       mu [COMMON-OPTIONS] verify [OPTIONS] [FILE...]

DESCRIPTION

       mu  verify is the mu command for verifying message signatures (such as PGP/GPG signatures) and displaying
       information about them. The sub-command works on message files, and does not require the  message  to  be
       indexed in the database.

       If no message file is provided, the command expects the message on standard-input.

VERIFY OPTIONS

   -r, --auto-retrieve
       Attempt to find keys online (see the auto-key-retrieve option in the gnupg(1) documentation).

   --decrypt
       Attempt to decrypt the message.

COMMON OPTIONS

   -d, --debug
       Makes  mu  generate  extra  debug information, useful for debugging the program itself. Debug information
       goes to the standard logging location; see mu(1).

   -q, --quiet
       Causes mu not to output informational messages and progress information to standard output, but  only  to
       the log file. Error messages will still be sent to standard error. Note that mu index is much faster with
       --quiet, so it is recommended you use this option when using mu from scripts etc.

   --log-stderr
       Causes  mu  to  not  output  log  messages to standard error, in addition to sending them to the standard
       logging location.

   --nocolor
       Do not use ANSI colors. The environment variable NO_COLOR can be used as an alternative to --nocolor.

   -V, --version
       Prints mu version and copyright information.

   -h, --help
       Lists the various command line options.

EXAMPLES

       To display aggregated (one-line) information about the verification status in a message:
              $ mu verify msgfile

       To display information about all the signatures:
              $ mu verify --verbose msgfile

       If you only want to use the exit code, you can use:
              $ mu verify --quiet msgfile

       which does not give any output unless there is an error.

REPORTING BUGS

       Please report bugs at https://github.com/djcb/mu/issues.

AUTHOR

       Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>

COPYRIGHT

       This manpage is part of mu 1.12.9.

       Copyright  ©  2008-2025  Dirk-Jan  C.  Binnema.  License   GPLv3+:   GNU   GPL   version   3   or   later
       https://gnu.org/licenses/gpl.html.  This  is  free  software: you are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       mu(1)

                                                                                                    MU VERIFY(1)