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PROGRAM:
NAME
dacsemail - Simple outgoing email agent
SYNOPSIS
dacsemail [-bcc addr] [{-bf | --bodyfile} path] [{-bs | --bodystring} string] [-cc addr]
[-ct value] [{-f | --from} from] [-h | --help] [-header name value]
[{-mailer | -mta} path] [{-mailer-flags | -mta-flags} string] [-p | --prompt]
[-save path] [{-s | --subject} subject] [-sender sender] [{-t | --to} addr]
[-transform] [-v | --verbose] [-var name value]
DESCRIPTION
This program is part of the DACS suite.
The dacsemail utility is a simple agent for sending email messages. It is a stand-alone
program that neither accepts the usual DACS command line options (dacsoptions[1]) nor
accesses any DACS configuration files.
dacsemail constructs an RFC 822[2] format message but does not transmit it. It requires an
external mailer, such as sendmail(8)[3], to transfer the message. The mailer command and
its arguments can be specified on the dacsemail command line (see -mailer) or at build
time (see dacs.install(7)[4]).
OPTIONS
If the source for the message body is not specified on the command line, it will be read
from the standard input. At least one recipient must be specified using -t, -cc, or -bcc.
-bcc addr
Send the message to the undisclosed recipient address addr. It is the responsibility
of the mailer to delete these recipient addresses before transmitting the message.
This flag may be repeated.
-bf path
--bodyfile path
Read the message body from path. If path is -, the standard input is read.
-bs string
--bodystring string
Use string as the message body.
-cc addr
Send the message to recipient addr as a carbon copy. This flag may be repeated.
-ct value
Add a Content-type header of MIME type value to the message. If value is
multipart/alternative, an appropriate boundary variable will be created, unless one
has already been specified on the command line with the -var flag. It is assumed that
the message body has already been correctly formatted for this MIME type, or will be
after it has been transformed (see -transform).
-f from
--from from
Use from as the value of the message's From header.
-h
--help
Print usage information and then exit.
-header name value
Add a message header named name with value value. This flag should only be used for
headers that do not have specific flags (-t, -ct, -f, and so on).
-mailer path
-mta path
Use the message transfer agent command path (a full pathname) instead of the
configured program. This program must read the message from its standard input and
extract the list of recipients from the message's To, Cc, and Bcc headers. (If such a
mailer is unavailable, it will be necessary to write a small program to wrap a mailer
and provide the required interface to dacsemail.) The default is to run sendmail(8)[3]
with its -t flag.
-mailer-flags string
-mta-flags string
Regardless of the mailer, use string for its command line flags.
-p
--prompt
Just before the message is to be sent, display it (to stderr) and wait for the user to
respond to a prompt. At the prompt, the user may abort the message or allow it to be
sent.
-save path
Just before sending (or prompting), write a copy of the outgoing message to path,
replacing any previous contents of the file.
-s subject
--subject subject
Set the message's Subject header to subject.
-sender sender
Set the message's Sender header to sender.
-t addr
--to addr
Add addr as a "To" recipient. This flag may be repeated.
-transform
The message body, regardless of how it is specified, is filtered through the DACS
transformation function. Please refer to dacs_transform(8)[5] for details. No access
control rules may be associated with any transformation; i.e., they are all
unconditional. A similar effect can be obtained by piping the output of
dacstransform(1)[6] into dacsemail.
-v
--verbose
Enable verbose output for debugging.
-var name value
Create a variable[7] named name set to value for the transform function. The
variable's value can be referenced within the message body in the DACS namespace as
${DACS::name}. The variable must not already be defined.
EXAMPLES
Suppose myfile contains the following text:
<!--DACS expand="*" -->
This is a multi-part message in MIME format.
--${DACS::boundary}
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: 7bit
Hello, ${DACS::user}!
--${DACS::boundary}
Content-Type: text/html; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: 7bit
<p>
<font color="red">Hello, ${DACS::user}!</font>
</p>
--${DACS::boundary}--
<!--DACS end="*" -->
The following command might be used to send a message with a multipart/alternative
structured body:
% dacsemail -ct multipart/alternative -f auggie@example.com
-t harley@example.com -s "Hello" -transform -var user Auggie -bf myfile
The resulting message will look something like the following:
To: harley@example.com
From: auggie@example.com
Subject: Hello
Content-type: multipart/alternative; boundary="_----------=_03885942562898683484"
Date: Wed, 07 Apr 2010 16:48:41 -0700 (PDT)
Content-transfer-encoding: 7bit
X-mailer: DACS 1.4.24a
This is a multi-part message in MIME format.
--_----------=_03885942562898683484
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: 7bit
Hello, Auggie!
--_----------=_03885942562898683484
Content-Type: text/html; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: 7bit
<p>
<font color="red">Hello, Auggie!</font>
</p>
--_----------=_03885942562898683484--
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