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.\" ========================================================================
.\"
.IX Title "INNMAIL 1"
.TH INNMAIL 1 "2023-03-07" "INN 2.7.2" "InterNetNews Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
innmail \- Simple mail\-sending program
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBinnmail\fR [\fB\-h\fR] [\fB\-a\fR \fIheader\fR] [\fB\-s\fR \fIsubject\fR] \fIaddress\fR
[\fIaddress\fR ...]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBinnmail\fR is a Perl script intended to provide the non-interactive
mail-sending functionality of \fBmail\fR\|(1) while avoiding nasty security
problems.  It takes the body of a mail message on standard input and sends
it to the specified addresses by invoking the value of \fImta\fR in
\&\fIinn.conf\fR.
.PP
At least one address (formatted for the \s-1MTA\s0 specified in \fIinn.conf\fR, if it
matters) is required.  \fBinnmail\fR will sanitize the addresses so that they
contain only alphanumerics and the symbols \f(CW\*(C`@\*(C'\fR, \f(CW\*(C`.\*(C'\fR, \f(CW\*(C`\-\*(C'\fR, \f(CW\*(C`+\*(C'\fR, \f(CW\*(C`_\*(C'\fR,
and \f(CW\*(C`%\*(C'\fR.
.PP
\&\fBinnmail\fR was written to be suitable for the \fImailcmd\fR setting in
\&\fIinn.conf\fR.
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-a\fR \fIheader\fR" 4
.IX Item "-a header"
Specifies an additional header field to add in the headers of the message.
It should be a well-formed header field surrounded by quotes, consisting
of a name and a body separated with a colon and a space.  For instance,
\&\f(CW\*(C`Auto\-Submitted: auto\-generated\*(C'\fR is used by some programs invoking
\&\fBinnmail\fR.
.Sp
You may provide more than one header field if \fIheader\fR is a multi-line
string, which can for instance be done with these commands:
.Sp
.Vb 2
\&    HEADERS=$(echo \-e "Hdr1: Body1\enHdr2: Body2")
\&    echo "test" | innmail \-a "$HEADERS" \-s Test joe
.Ve
.IP "\fB\-h\fR" 4
.IX Item "-h"
Gives usage information.
.IP "\fB\-s\fR \fIsubject\fR" 4
.IX Item "-s subject"
Sets the Subject header field body of the message.  A warning is issued
if this option is omitted.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
This sends a one-line message to the local user \f(CW\*(C`joe\*(C'\fR:
.PP
.Vb 1
\&    echo "A one\-line message." | innmail \-s "Simple message" joe
.Ve
.PP
\&\fBinnmail\fR by default is used by \s-1INN\s0 for sending nightly reports to the news
administrator, as well as errors during the execution of a few programs.
.SH "BUGS"
.IX Header "BUGS"
\&\fBinnmail\fR fails on addresses that begin with \f(CW\*(C`\-\*(C'\fR, although one might
hope that the news server will not need to contact any such addresses.
.PP
There are many \*(L"correct\*(R" addresses that will be silently modified by the
sanitization process.  A news administrator should be careful to use
particularly sane addresses if they may be passed to \fBinnmail\fR.
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBinnmail\fR was written by James Brister <brister@vix.com> for
InterNetNews.  This manual page was originally written by Jeffrey
M. Vinocur.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBinn.conf\fR\|(5), \fBmail\fR\|(1).