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The POSIX mailx command can be used to send simple e-mail messages via
Sendmail. Mailx reads the file /etc/mailx.rc to determine which
mail delivery program to use, and the Sendmail installation script modifies
this file to specify that Sendmail shall be used. For more information about
mailx, please see "man mailx" or the MPE/iX
Shell & Utilities Reference Manual Vol. 1.
To send a message interactively:
:XEQ SH.HPBIN.SYS -L shell/iX> mailx someuser@some.host
Subject: hello world
Hi,
How are you doing?
:EOD
EOT
To send a message from a pipe:
:XEQ SH.HPBIN.SYS -L shell/iX> echo "Hi,\n\nHow are you doing?" | \
mailx -s "hello world" someuser@some.host
To send a message from a disk file:
:XEQ SH.HPBIN.SYS -L shell/iX> /bin/cat -
>/diskfile/containing/message/body
Hi,
How are you doing?
:EOD shell/iX> mailx -s "hello world" someuser@some.host \
</diskfile/containing/message/body
Mailx only gives you limited control
over message headers and does not allow you to send attachments.
For total control over message formatting and content, you will
need to invoke Sendmail directly.
Sendmail expects you to pass it a fully formatted message
via stdin that consists of both header data and body text. Note
that an empty line is used to delimit where the headers end and
the body text begins.
To send a message interactively:
:XEQ SH.HPBIN.SYS -L shell/iX> /bin/cat - | /SENDMAIL/CURRENT/SENDMAIL
someuser@some.host
Subject: hello world
Hi,
How are you doing?
:EOD
To send a message with Sendmail reading the headers to determine
the recipient addresses:
:XEQ SH.HPBIN.SYS -L shell/iX> /bin/cat - >message.txt
To: someuser@some.host
Cc: otheruser@other.host
Bcc: secretuser@another.host
Subject: hello world
Hi,
How is everybody doing?
:EOD shell/iX> /SENDMAIL/CURRENT/SENDMAIL -t
<message.txt
Note that Sendmail is merely a passive Mail Transport Agent
and doesn't give you any message composition functionality
to create things such as attachments. If you want to create attachments,
you must manually create all of the necessary message headers yourself.
These Multipurpose Internet Mail Extensions (MIME) headers are described
in RFCs 2045-2049. RFCs are available from many places on the Internet;
the official central repository is http://www.rfc-editor.org/.
Some scripting languages contain tools to make MIME content
generation easier -- for a Perl example, please see
http://search.cpan.org/search?module=MIME::Lite (Perl is not
supported by HP).
If the mail daemon isn't running when a local user submits a new e-mail
message, the message will be queued in the /var/spool/clientmqueue
directory which will be processed the next time the mail daemon job is started.
Otherwise, the new message is sent to the mail daemon via TCP port 25, and the
daemon queues the message in the /var/spool/mqueue directory and then
attempts immediate delivery.
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