#!/usr/bin/perl
my $version = "3.6";
require 5.008;
use strict;
use IO::Socket::INET;
use MIME::Base64 qw(encode_base64 decode_base64);
use Getopt::Long;
use Socket qw(:DEFAULT :crlf);
my @valid_encodings = ("7bit", "8bit", "binary", "base64", "quoted-printable");
my ($user, $pass, $host, $port, $addr_family,
$use_login, $use_plain, $use_cram_md5,
$ehlo_ok, $auth_ok, $starttls_ok, $ssl, $verbose,
$hello_host, $datasrc,
$mail_from, @rcpt_to, $from, @to, @cc, @bcc,
$missing_modules_ok, $missing_modules_count,
$subject, $body_plain, $body_html, $charset, $text_encoding, $print_only,
@attachments, @attachments_inline,
@add_headers, @replace_headers, @remove_headers,
$ssl_ca_file, $ssl_ca_path,
$sock, $built_message);
$host = undef;
$port = 'smtp(25)';
$addr_family = AF_UNSPEC;
$hello_host = 'localhost';
$verbose = 0;
$use_login = 0;
$use_plain = 0;
$use_cram_md5 = 0;
$starttls_ok = 1;
$ssl = undef;
$auth_ok = 0;
$ehlo_ok = 1;
$missing_modules_ok = 0;
$missing_modules_count = 0;
$charset = undef;
$text_encoding = "quoted-printable";
$print_only = 0;
GetOptions (
'host|server=s' => \$host,
'port=i' => \$port,
'4|ipv4' => sub { $addr_family = AF_INET; },
'6|ipv6' => sub { $addr_family = AF_INET6; },
'user=s' => \$user, 'password=s' => \$pass,
'auth-login' => \$use_login,
'auth-plain' => \$use_plain,
'auth-cram-md5' => \$use_cram_md5,
'disable-ehlo' => sub { $ehlo_ok = 0; },
'force-ehlo' => sub { $ehlo_ok = 2; },
'hello-host|ehlo-host|helo-host=s' => \$hello_host,
'auth|enable-auth' => \$auth_ok,
'disable-starttls|disable-tls|disable-ssl' =>
sub { $starttls_ok = 0; },
'ssl' => sub { $ssl = 1 },
'disable-ssl' => sub { $ssl = 0 },
'mail-from=s' => \$mail_from,
'rcpt-to=s' => \@rcpt_to,
'from=s' => \$from,
'to=s' => \@to,
'cc=s' => \@cc,
'bcc=s' => \@bcc,
'data=s' => \$datasrc,
'subject=s' => \$subject,
'body|body-plain=s' => \$body_plain,
'body-html=s' => \$body_html,
'charset=s' => \$charset,
'text-encoding=s' => \$text_encoding,
'attachment|attach=s' => \@attachments,
'attachment-inline|attach-inline=s' => \@attachments_inline,
'add-header=s' => \@add_headers,
'replace-header=s' => \@replace_headers,
'remove-header=s' => \@remove_headers,
'print-only' => \$print_only,
'missing-modules-ok' => \$missing_modules_ok,
'ssl-ca-file=s' => \$ssl_ca_file,
'ssl-ca-path=s' => \$ssl_ca_path,
'v|verbose+' => \$verbose,
'version' => sub { &version() },
'help' => sub { &usage() } );
my $have_ssl = eval { require IO::Socket::SSL; require Net::SSLeay; 1; };
if (not $have_ssl and not $missing_modules_ok) {
warn("!!! IO::Socket::SSL and/or Net::SSLeay modules are not found\n");
warn("!!! These modules are required for SSL and STARTTLS support\n");
$missing_modules_count += 2;
}
my $socket6 = eval { require IO::Socket::INET6; require Socket6; 1; };
if (not $socket6) {
if ($addr_family == AF_INET6) {
die("!!! IO::Socket::INET6 and Socket6 modules are not found\nIPv6 support is not available\n");
}
if (not $missing_modules_ok) {
warn("!!! IO::Socket::INET6 -- optional module not found\n");
warn("!!! Socket6 -- optional module not found\n");
warn("!!! These modules are required for IPv6 support\n\n");
$missing_modules_count += 2;
}
}
my $mime_lite = eval { require MIME::Lite; 1; };
if (not $mime_lite and not $missing_modules_ok) {
warn("!!! MIME::Lite -- optional module not found\n");
warn("!!! Used for composing messages from --subject, --body, --attachment, etc.\n\n");
$missing_modules_count++;
}
my $file_libmagic = eval { require File::LibMagic; File::LibMagic->new(); };
my $file_type = eval { require File::Type; File::Type->new(); };
if (not $file_libmagic and not $file_type and not $missing_modules_ok) {
warn("!!! Neither File::LibMagic nor File::Type module found.\n");
warn("!!! Used for guessing MIME types of attachments. Optional.\n\n");
$missing_modules_count++;
}
my $have_term_readkey = eval { require Term::ReadKey; 1; };
if (not $have_term_readkey and not $missing_modules_ok) {
warn("!!! Term::ReadKey -- optional module not found\n");
warn("!!! Used for hidden reading SMTP password from the terminal\n\n");
$missing_modules_count++;
}
my $have_hmac_md5 = eval { require Digest::HMAC_MD5; 1; };
if (not $have_hmac_md5 and not $missing_modules_ok) {
if ($use_cram_md5) {
die("!!! CRAM-MD5 authentication is not available because Digest::HMAC_MD5 module is missing\n");
}
warn("!!! Digest::HMAC_MD5 -- optional module missing\n");
warn("!!! Used for CRAM-MD5 authentication method\n");
$missing_modules_count++;
}
if ($missing_modules_count) {
warn("!!! Use --missing-modules-ok if you don't need the above listed modules\n");
warn("!!! and don't want to see this message again.\n\n");
}
if (not defined($host)) {
if (not $print_only) {
die("Error: Specify the SMTP server with --server=hostname[:port]\n");
} else {
$host = "localhost";
}
}
if (not grep(/^$text_encoding$/, @valid_encodings))
{
die ("The --text-encoding value is invalid: $text_encoding\nMust be one of: " . join(', ', @valid_encodings) . "\n");
}
if (($host =~ /^([^:]+):([:alnum:]+)$/) or
($host =~ /^\[([[:xdigit:]:]+)\]:([:alnum:]+)$/))
{
$host = $1;
$port = $2;
}
if (not defined($ssl)) {
$ssl = ($port == 465);
}
if (not defined($mail_from) and defined($from)) {
$mail_from = &find_email_addr($from) or
die ("The --from string does not contain a valid email address: $from\n");
}
if (not @rcpt_to) {
foreach my $rcpt (@to, @cc, @bcc) {
my $rcpt_addr = &find_email_addr($rcpt);
if (not defined($rcpt_addr)) {
warn("No valid email address found in: $rcpt\n");
next;
}
push(@rcpt_to, $rcpt_addr);
}
}
if (not @to and not @cc) {
push(@to, "undisclosed-recipients:;");
}
if (defined($subject) or defined($body_plain) or defined($body_html) or
@attachments or @attachments_inline) {
if (not $mime_lite) {
die("Module MIME::Lite is not available. Unable to build the message, sorry.\n".
"Use --data and provide a complete email payload including headers instead.\n");
}
if (defined($datasrc)) {
die("Requested building a message and at the same time used --data parameter.\n".
"That's not possible, sorry.\n");
}
if (defined($body_plain) and -f $body_plain) {
local $/=undef;
open(FILE, $body_plain);
$body_plain = <FILE>;
close(FILE);
}
if (defined($body_html) and -f $body_html) {
local $/=undef;
open(FILE, $body_html);
$body_html = <FILE>;
close(FILE);
}
my $message = &build_message();
open(BUILT_MESSAGE, "+>", \$built_message);
$datasrc = "///built_message";
if ($print_only) {
$message->print();
exit(0);
} else {
$message->print(\*BUILT_MESSAGE);
}
seek(BUILT_MESSAGE, 0, 0);
}
if ($user)
{ $auth_ok = 1; }
if ($use_login + $use_plain + $use_cram_md5 > 0)
{ $auth_ok = 1; }
elsif ($auth_ok && ($use_login + $use_plain + $use_cram_md5 == 0))
{
$use_login = 1;
$use_plain = 1;
$use_cram_md5 = 1 if ($have_hmac_md5);
}
if ($auth_ok && !defined ($user))
{ die ("SMTP AUTH support requested without --user\n"); }
if ($auth_ok && defined ($user) && !defined ($pass))
{
if ($have_term_readkey) {
Term::ReadKey::ReadMode (2);
} else {
warn ("Module Term::ReadKey not available - password WILL NOT be hidden!!!\n");
}
printf ("Enter password for %s@%s : ", $user, $host);
$pass = <>;
if ($have_term_readkey) {
Term::ReadKey::ReadMode (0);
printf ("\n");
}
exit if (! defined ($pass));
chop ($pass);
}
my %connect_args = (
PeerAddr => $host,
PeerPort => $port,
Proto => 'tcp',
Timeout => 5);
if ($socket6) {
$connect_args{'Domain'} = $addr_family;
$sock = IO::Socket::INET6->new(%connect_args) or die ("Connect failed: $@\n");
} else {
$sock = IO::Socket::INET->new(%connect_args) or die ("Connect failed: $@\n");
}
if ($verbose >= 1) {
my $addr_fmt = "%s";
$addr_fmt = "[%s]" if ($sock->sockhost() =~ /:/);
printf ("Connection from $addr_fmt:%s to $addr_fmt:%s\n",
$sock->sockhost(), $sock->sockport(),
$sock->peerhost(), $sock->peerport());
}
if ($ssl) {
printf ("Starting SMTP/SSL...\n") if ($verbose >= 1);
&socket_to_ssl($sock);
}
my ($code, $text);
my (%features);
($code, $text) = &get_line ($sock);
die ("Unknown welcome string: '$code $text'\n") if ($code != 220);
$ehlo_ok-- if ($text !~ /ESMTP/);
&say_hello ($sock, $ehlo_ok, $hello_host, \%features) or exit (1);
&run_smtp ();
&send_line ($sock, "QUIT\n");
($code, $text) = &get_line ($sock);
die ("Unknown QUIT response '$code'.\n") if ($code != 221);
exit 0;
sub run_smtp
{
if ((defined ($features{'STARTTLS'}) || defined ($features{'TLS'})) && $starttls_ok && !$have_ssl)
{
warn ("Module IO::Socket::SSL is missing - STARTTLS support disabled.\n");
warn ("Use --disable-starttls or install the modules to avoid this warning.\n");
undef ($features{'STARTTLS'});
undef ($features{'TLS'});
}
if ((defined ($features{'STARTTLS'}) || defined ($features{'TLS'})) && $starttls_ok)
{
printf ("Starting TLS...\n") if ($verbose >= 1);
&send_line ($sock, "STARTTLS\n");
($code, $text) = &get_line ($sock);
die ("Unknown STARTTLS response '$code'.\n") if ($code != 220);
&socket_to_ssl($sock);
&say_hello ($sock, $ehlo_ok, $hello_host, \%features) or return 0;
}
if (defined ($features{'AUTH'}) && $auth_ok)
{
printf ("AUTH method (%s): ", $features{'AUTH'}) if ($verbose >= 1);
if ($features{'AUTH'} =~ /CRAM-MD5/i && $use_cram_md5)
{
printf ("using CRAM-MD5\n") if ($verbose >= 1);
&send_line ($sock, "AUTH CRAM-MD5\n");
($code, $text) = &get_line ($sock);
if ($code != 334)
{ die ("AUTH CRAM-MD5 failed: $code $text\n"); }
my $response = &encode_cram_md5 ($text, $user, $pass);
&send_line ($sock, "%s\n", $response);
($code, $text) = &get_line ($sock);
if ($code != 235)
{ die ("AUTH CRAM-MD5 failed: $code $text\n"); }
}
elsif ($features{'AUTH'} =~ /LOGIN/i && $use_login)
{
printf ("using LOGIN\n") if ($verbose >= 1);
&send_line ($sock, "AUTH LOGIN\n");
($code, $text) = &get_line ($sock);
if ($code != 334)
{ die ("AUTH LOGIN failed: $code $text\n"); }
&send_line ($sock, "%s\n", encode_base64 ($user, ""));
($code, $text) = &get_line ($sock);
if ($code != 334)
{ die ("AUTH LOGIN failed: $code $text\n"); }
&send_line ($sock, "%s\n", encode_base64 ($pass, ""));
($code, $text) = &get_line ($sock);
if ($code != 235)
{ die ("AUTH LOGIN failed: $code $text\n"); }
}
elsif ($features{'AUTH'} =~ /PLAIN/i && $use_plain)
{
printf ("using PLAIN\n") if ($verbose >= 1);
&send_line ($sock, "AUTH PLAIN %s\n",
encode_base64 ("$user\0$user\0$pass", ""));
($code, $text) = &get_line ($sock);
if ($code != 235)
{ die ("AUTH PLAIN failed: $code $text\n"); }
}
else
{
warn ("No supported authentication method\n".
"advertised by the server.\n");
return 0;
}
printf ("Authentication of $user\@$host succeeded\n") if ($verbose >= 1);
}
if ($#rcpt_to >= 0)
{
if (!defined ($mail_from))
{
warn ("From: address not set. Using empty one.\n");
$mail_from = "";
}
&send_line ($sock, "MAIL FROM: <%s>\n", $mail_from);
($code, $text) = &get_line ($sock);
if ($code != 250)
{
warn ("MAIL FROM <$mail_from> failed: '$code $text'\n");
return 0;
}
my $i;
for ($i=0; $i <= $#rcpt_to; $i++)
{
&send_line ($sock, "RCPT TO: <%s>\n", $rcpt_to[$i]);
($code, $text) = &get_line ($sock);
if ($code != 250)
{
warn ("RCPT TO <".$rcpt_to[$i]."> ".
"failed: '$code $text'\n");
return 0;
}
}
}
if (defined ($datasrc))
{
if ($datasrc eq "///built_message")
{
*MAIL = *BUILT_MESSAGE;
}
elsif ($datasrc eq "-")
{
*MAIL = *STDIN;
}
elsif (!open (MAIL, $datasrc))
{
warn ("Can't open file '$datasrc'\n");
return 0;
}
&send_line ($sock, "DATA\n");
($code, $text) = &get_line ($sock);
if ($code != 354)
{
warn ("DATA failed: '$code $text'\n");
return 0;
}
while (<MAIL>)
{
my $line = $_;
$line =~ s/^\./\.\./;
$line =~ s/[\r\n]+$/$CRLF/;
$sock->print ($line);
}
close (MAIL);
$sock->printf ("$CRLF.$CRLF");
($code, $text) = &get_line ($sock);
if ($code != 250)
{
warn ("DATA not send: '$code $text'\n");
return 0;
}
}
return 1;
}
sub get_one_line ($)
{
my $sock = shift;
my ($code, $sep, $text) = ($sock->getline() =~ /(\d+)(.)([^\r]*)/);
my $more;
$more = ($sep eq "-");
if ($verbose)
{ printf ("[%d] '%s'\n", $code, $text); }
return ($code, $text, $more);
}
sub get_line ($)
{
my $sock = shift;
my ($code, $text, $more) = &get_one_line ($sock);
while ($more) {
my ($code2, $line);
($code2, $line, $more) = &get_one_line ($sock);
$text .= " $line";
die ("Error code changed from $code to $code2. That's illegal.\n") if ($code ne $code2);
}
return ($code, $text);
}
sub send_line ($@)
{
my $socket = shift;
my @args = @_;
if ($verbose)
{ printf ("> "); printf (@args); }
$args[0] =~ s/\n/$CRLF/g;
$socket->printf (@args);
}
sub socket_to_ssl($)
{
if (!$have_ssl) {
die ("SSL/TLS support is not available due to missing modules. Sorry.\n");
}
Net::SSLeay::load_error_strings();
Net::SSLeay::SSLeay_add_ssl_algorithms();
Net::SSLeay::randomize();
if (! IO::Socket::SSL->start_SSL($sock, {
SSL_ca_file => $ssl_ca_file,
SSL_ca_path => $ssl_ca_path,
SSL_verify_mode => (defined($ssl_ca_file) or defined($ssl_ca_path)) ? 0x01 : 0x00,
}))
{
die ("SSL/TLS: ".IO::Socket::SSL::errstr()."\n");
}
if ($verbose >= 1)
{
printf ("Using cipher: %s\n", $sock->get_cipher ());
printf ("%s", $sock->dump_peer_certificate());
}
}
sub encode_cram_md5 ($$$)
{
my ($ticket64, $username, $password) = @_;
my $ticket = decode_base64($ticket64) or
die ("Unable to decode Base64 encoded string '$ticket64'\n");
print "Decoded CRAM-MD5 challenge: $ticket\n" if ($verbose > 1);
my $password_md5 = Digest::HMAC_MD5::hmac_md5_hex($ticket, $password);
return encode_base64 ("$username $password_md5", "");
}
sub say_hello ($$$$)
{
my ($sock, $ehlo_ok, $hello_host, $featref) = @_;
my ($feat, $param);
my $hello_cmd = $ehlo_ok > 0 ? "EHLO" : "HELO";
&send_line ($sock, "$hello_cmd $hello_host\n");
my ($code, $text, $more) = &get_one_line ($sock);
if ($code != 250)
{
warn ("$hello_cmd failed: '$code $text'\n");
return 0;
}
%{$featref} = ();
($feat, $param) = ($text =~ /^(\w+)[= ]*(.*)$/);
$featref->{$feat} = $param;
while ($more == 1)
{
($code, $text, $more) = &get_one_line ($sock);
($feat, $param) = ($text =~ /^(\w+)[= ]*(.*)$/);
$featref->{$feat} = $param;
}
return 1;
}
sub find_email_addr($)
{
my $addr = shift;
if ($addr =~ /([A-Z0-9._%=+-]+@(?:[A-Z0-9-]+\.)+[A-Z]+)\b/i) {
return $1;
}
return undef;
}
sub guess_mime_type($)
{
my $filename = shift;
if (defined($file_libmagic)) {
return $file_libmagic->checktype_filename($filename);
} elsif (defined($file_type)) {
return $file_type->mime_type($filename);
} else {
return "image/jpeg" if ($filename =~ /\.jpe?g/i);
return "image/gif" if ($filename =~ /\.gif/i);
return "image/png" if ($filename =~ /\.png/i);
return "text/plain" if ($filename =~ /\.txt/i);
return "application/zip" if ($filename =~ /\.zip/i);
return "application/x-gzip" if ($filename =~ /\.t?gz/i);
return "application/x-bzip" if ($filename =~ /\.t?bz2?/i);
}
return "application/octet-stream";
}
sub basename($)
{
my $path = shift;
my @parts = split(/\//, $path);
return $parts[$#parts];
}
sub prepare_attachment($)
{
my $attachment = shift;
my ($path, $mime_type);
if (-f $attachment) {
$path = $attachment;
$mime_type = guess_mime_type($attachment);
} elsif ($attachment =~ /(.*)@([^@]*)$/ and -f $1) {
$path = $1;
$mime_type = $2;
}
return ($path, $mime_type);
}
sub attach_attachments($$@)
{
my $message = shift;
my $disposition = shift;
my @attachments = @_;
foreach my $attachment (@attachments) {
my ($path, $mime_type) = prepare_attachment($attachment);
if (not defined($path)) {
warn("$attachment: File not found. Ignoring.\n");
next;
}
$message->attach(
Type => $mime_type,
Path => $path,
Id => basename($path),
Disposition => $disposition,
);
}
}
sub safe_attach($$)
{
my ($message, $part) = @_;
$part->delete("Date");
$part->delete("X-Mailer");
$part->attr("MIME-Version" => undef);
$message->attach($part);
return $message;
}
sub mime_message($$)
{
my ($type, $data) = @_;
my $encoding = $type =~ /^text\// ? $text_encoding : undef;
my $message = MIME::Lite->new(
Type => $type,
Encoding=> $encoding,
Data => $data);
$message->attr('content-type.charset' => $charset) if (($type =~ /^text\//i) and defined($charset));
return $message;
}
sub build_message
{
my ($part_plain, $part_html, $part_body, $message);
if (@attachments_inline) {
if (not defined($body_html)) {
die("Inline attachments (--attach-inline) must be used with --body-html\n");
}
$part_html = MIME::Lite->new(Type => 'multipart/related');
$part_html->attach(Type => 'text/html', Data => $body_html);
attach_attachments($part_html, "inline", @attachments_inline);
$message = $part_html;
undef($body_html);
}
if (defined($body_html)) {
$part_html = mime_message('text/html', $body_html);
$message = $part_html;
}
if (defined($body_plain)) {
$part_plain = mime_message('text/plain', $body_plain);
$message = $part_plain;
}
if (defined($part_plain) and defined($part_html)) {
$part_body = mime_message("multipart/alternative", undef);
safe_attach($part_body, $part_plain);
safe_attach($part_body, $part_html);
$message = $part_body;
}
if (@attachments) {
if (defined($message)) {
my $message_body = $message;
$message = mime_message("multipart/mixed", undef);
safe_attach($message, $message_body);
attach_attachments($message, "attachment", @attachments);
} elsif ($#attachments == 0) {
my ($path, $mime_type) = prepare_attachment($attachments[0]);
if (not defined($path)) {
die($attachments[0].": File not found. No other message parts defined. Aborting.\n");
}
$message = MIME::Lite->new(
Type => $mime_type,
Path => $path);
} else {
$message = mime_message("multipart/mixed", undef);
attach_attachments($message, "attachment", @attachments);
}
}
if (!defined($message)) {
$message = mime_message("TEXT", "");
}
$message->replace("From" => $from);
$message->replace("To" => join(", ", @to));
$message->replace("Cc" => join(", ", @cc));
$message->replace("Subject" => $subject);
$message->replace("X-Mailer" => "smtp-cli $version, see http://smtp-cli.logix.cz");
$message->replace("Message-ID" => time()."-".int(rand(999999))."\@smtp-cli");
for my $header (@add_headers) {
my ($hdr, $val) = ($header =~ /^([^:]+):\s*(.*)$/);
die("Not a valid header format: ${header}\n") if (not $hdr or not $val);
$message->add($hdr => $val);
}
for my $header (@replace_headers) {
my ($hdr, $val) = ($header =~ /^([^:]+):\s*(.*)$/);
die("Not a valid header format: ${header}\n") if (not $hdr or not $val);
$message->replace($hdr => $val);
}
for my $header (@remove_headers) {
my ($hdr) = ($header =~ /^([^:\s]+)/);
$message->replace($header => "");
}
return $message;
}
sub version ()
{
print "smtp-cli version $version\n";
exit (0);
}
sub usage ()
{
printf (
"Simple SMTP client written in Perl that supports advanced
features like STARTTLS and SMTP-AUTH and IPv6. It can also
create messages from components (files, text snippets) and
attach files.
Version: smtp-cli v$version
Author: Michal Ludvig <mludvig\@logix.net.nz> (c) 2003-2011
http://smtp-cli.logix.cz
Usage: smtp-cli [--options]
--server=<hostname>[:<port>]
Host name or IP address of the SMTP server.
May include the port after colon, alternatively
use --port.
--port=<number> Port where the SMTP server is listening.
(default: 25)
-4 or --ipv4 Use standard IP (IPv4) protocol.
-6 or --ipv6 Use IPv6 protocol. For hosts that have
both IPv6 and IPv4 addresses the IPv6
connection is tried first.
--hello-host=<string> String to use in the EHLO/HELO command.
--disable-ehlo Don't use ESMTP EHLO command, only HELO.
--force-ehlo Use EHLO even if server doesn't say ESMTP.
Transport encryption (TLS)
--disable-starttls Don't use encryption even if the remote
host offers it.
--ssl Start in SMTP/SSL mode (aka SSMTP).
Default when --port=465
--disable-ssl Don't start SSMTP even if --port=465
--ssl-ca-file=<filename>
Verify the server's SSL certificate against
a trusted CA root certificate file.
--ssl-ca-path=<dirname> Similar to --ssl-ca-file but will look for
the appropriate root certificate file in
the given directory. The certificates must
must be stored one per file with hash-links
generated by, for example, c_rehash script
from OpenSSL.
Authentication options (AUTH)
--user=<username> Username for SMTP authentication.
--pass=<password> Corresponding password.
--auth-login Enable only AUTH LOGIN method.
--auth-plain Enable only AUTH PLAIN method.
--auth-cram-md5 Enable only AUTH CRAM-MD5 method.
--auth Enable all supported methods. This is
normally not needed, --user enables
everything as well.
Sender / recipient
--from=\"Display Name <add\@re.ss>\"
Sender's name address (or address only).
--to=\"Display Name <add\@re.ss>\"
--cc=\"Display Name <add\@re.ss>\"
--bcc=\"Display Name <add\@re.ss>\"
Message recipients. Each parameter can be
used multiple times.
The --bcc addresses won't apprear in
the composed message.
SMTP Envelope sender / recipient
(rarely needed, use --from, --to, --cc and --bcc instead)
--mail-from=<address> Address to use in MAIL FROM command.
Use --from instead, unless you want
a different address in the envelope and
in the headers.
--rcpt-to=<address> Address to use in RCPT TO command. Can be
used multiple times. Normally not needed,
use --to, --cc and --bcc instead.
If set the --to, --cc and --bcc will only
be used for composing the message body and
not for delivering the messages.
Send a complete RFC822-compliant email message:
--data=<filename> Name of file to send after DATA command.
With \"--data=-\" the script will read
standard input (useful e.g. for pipes).
Alternatively build email a message from provided components:
--subject=<subject> Subject of the message
--body-plain=<text|filename>
--body-html=<text|filename>
Plaintext and/or HTML body of the message
If both are provided the message is sent
as multipart.
--charset=<charset> Character set used for Subject and Body,
for example UTF-8, ISO-8859-2, KOI8-R, etc.
--text-encoding=<encoding>
Enforce Content-Transfer-Encoding for text
parts of the email, including body and
attachments. Must be one of:
".join(", ", @valid_encodings)."
The default is: quoted-printable
--attach=<filename>[\@<MIME/Type>]
Attach a given filename.
MIME-Type of the attachment is guessed
by default guessed but can optionally
be specified after '\@' delimiter.
For instance: --attach mail.log\@text/plain
Parameter can be used multiple times.
--attach-inline=<filename>[\@<MIME/Type>]
Attach a given filename (typically a picture)
as a 'related' part to the above 'body-html'.
Refer to these pictures as <img src='cid:filename'>
in the 'body-html' contents.
See --attach for details about MIME-Type.
Can be used multiple times.
--add-header=\"Header: value\"
--replace-header=\"Header: value\"
--remove-header=\"Header\"
Add, Replace or Remove pretty much any header
in the email. For example to set a different
Mailer use --replace-header=\"X-Mailer: Blah\",
to remove it altogether --remove-header=X-Mailer
or to add a completely custom header use
--add-header=\"X-Something: foo bar\".
--print-only Dump the composed MIME message to standard
output. This is useful mainly for debugging
or in the case you need to run the message
through some filter before sending.
Other options
--verbose[=<number>] Be more verbose, print the SMTP session.
--missing-modules-ok Don't complain about missing optional modules.
--version Print: smtp-cli version $version
--help Guess what is this option for ;-)
PayPal donations: http://smtp-cli.logix.cz/donate
Thanks in advance for your support!
");
exit (0);
}