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GPG-MAIL-TUBE(1) GNU Privacy Guard 2.4 GPG-MAIL-TUBE(1) NAME gpg-mail-tube - Encrypt rfc822 formatted mail in a pipeline SYNOPSIS gpg-mail-tube [options] recipients DESCRIPTION gpg-mail-tube takes RFC-822 formatted mail on stdin and turns it into a PGP/MIME encrypted mail which is then written to stdout. The recipients must be plain mail addresses (e.g. foo@example.org) and should in general list the To and Cc addresses contained in the mail. OPTIONS gpg-mail-tube understands these options: --verbose -v Enable extra informational output. --quiet -q Try to be as quiet as possible. --log-file file Write log output to file. Use `socket://' to log to a socket. --no-stderr Suppresses all output to stderr. This is useful for callers which don't distinguish stdout and stderr. To get diagnostics the option --log-file can be used. --header name=value Add the mail header "name: value" to the output. --setenv name=value Put the given environment string into the environment of this process and of the called gpg. This option is required if there is no other way to set the environemt. --as-attach -a Do not write a PGP/MIME mail but emit a simple body along with an attachment containing the encrypted body of the input mail. If the input was a plain text message a simple encrypted file will be attached. If the input was a multipart MIME message the encrypted file is of type message/rfc822. --gpg gpgcmd Use the specified command gpgcmd instead of gpg. --vsd Use the gpg from a GnuPG VS-Desktop AppImage. The AppImage is started if it is not running. A symlink named `~/.gnupg-vsd/gnupg-vs-desktop.AppImage' needs to link to the actually to be used AppImage. --version Print version of the program and exit. --help Display a brief help page and exit. EXAMPLES The following options can be used in a local transport rule of the Exim MTA which assumes that that check_local_user has been used in the router. transport_filter = /usr/local/bin/gpg-mail-tube --setenv HOME=${home} \ --no-stderr -- $pipe_addresses For a remote transport the use of size_addition and an explicit setting of the user and its home directory might be required. DIAGNOSTICS The program returns 0 on a successful encryption or a non-zero value on error. Note that on error some output might have already been written to stdout. SEE ALSO gpg(1), The full documentation for this tool is maintained as a Texinfo manual. If GnuPG and the info program are properly installed at your site, the command info gnupg should give you access to the complete manual including a menu struc- ture and an index. GnuPG 2.4.7 2025-04-12 GPG-MAIL-TUBE(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | DIAGNOSTICS | SEE ALSO
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