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.\" ========================================================================
.\"
.IX Title "Net::SMTP 3"
.TH Net::SMTP 3 "2012-10-11" "perl v5.12.5" "Perl Programmers Reference Guide"
.\" 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"
Net::SMTP \- Simple Mail Transfer Protocol Client
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\&    use Net::SMTP;
\&
\&    # Constructors
\&    $smtp = Net::SMTP\->new(\*(Aqmailhost\*(Aq);
\&    $smtp = Net::SMTP\->new(\*(Aqmailhost\*(Aq, Timeout => 60);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This module implements a client interface to the \s-1SMTP\s0 and \s-1ESMTP\s0
protocol, enabling a perl5 application to talk to \s-1SMTP\s0 servers. This
documentation assumes that you are familiar with the concepts of the
\&\s-1SMTP\s0 protocol described in \s-1RFC821\s0.
.PP
A new Net::SMTP object must be created with the \fInew\fR method. Once
this has been done, all \s-1SMTP\s0 commands are accessed through this object.
.PP
The Net::SMTP class is a subclass of Net::Cmd and IO::Socket::INET.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
This example prints the mail domain name of the \s-1SMTP\s0 server known as mailhost:
.PP
.Vb 1
\&    #!/usr/local/bin/perl \-w
\&
\&    use Net::SMTP;
\&
\&    $smtp = Net::SMTP\->new(\*(Aqmailhost\*(Aq);
\&    print $smtp\->domain,"\en";
\&    $smtp\->quit;
.Ve
.PP
This example sends a small message to the postmaster at the \s-1SMTP\s0 server
known as mailhost:
.PP
.Vb 1
\&    #!/usr/local/bin/perl \-w
\&
\&    use Net::SMTP;
\&
\&    $smtp = Net::SMTP\->new(\*(Aqmailhost\*(Aq);
\&
\&    $smtp\->mail($ENV{USER});
\&    $smtp\->to(\*(Aqpostmaster\*(Aq);
\&
\&    $smtp\->data();
\&    $smtp\->datasend("To: postmaster\en");
\&    $smtp\->datasend("\en");
\&    $smtp\->datasend("A simple test message\en");
\&    $smtp\->dataend();
\&
\&    $smtp\->quit;
.Ve
.SH "CONSTRUCTOR"
.IX Header "CONSTRUCTOR"
.IP "new ( [ \s-1HOST\s0 ] [, \s-1OPTIONS\s0 ] )" 4
.IX Item "new ( [ HOST ] [, OPTIONS ] )"
This is the constructor for a new Net::SMTP object. \f(CW\*(C`HOST\*(C'\fR is the
name of the remote host to which an \s-1SMTP\s0 connection is required.
.Sp
\&\f(CW\*(C`HOST\*(C'\fR is optional. If \f(CW\*(C`HOST\*(C'\fR is not given then it may instead be
passed as the \f(CW\*(C`Host\*(C'\fR option described below. If neither is given then
the \f(CW\*(C`SMTP_Hosts\*(C'\fR specified in \f(CW\*(C`Net::Config\*(C'\fR will be used.
.Sp
\&\f(CW\*(C`OPTIONS\*(C'\fR are passed in a hash like fashion, using key and value pairs.
Possible options are:
.Sp
\&\fBHello\fR \- \s-1SMTP\s0 requires that you identify yourself. This option
specifies a string to pass as your mail domain. If not given localhost.localdomain
will be used.
.Sp
\&\fBHost\fR \- \s-1SMTP\s0 host to connect to. It may be a single scalar, as defined for
the \f(CW\*(C`PeerAddr\*(C'\fR option in IO::Socket::INET, or a reference to
an array with hosts to try in turn. The \*(L"host\*(R" method will return the value
which was used to connect to the host.
.Sp
\&\fBLocalAddr\fR and \fBLocalPort\fR \- These parameters are passed directly
to IO::Socket to allow binding the socket to a local port.
.Sp
\&\fBTimeout\fR \- Maximum time, in seconds, to wait for a response from the
\&\s-1SMTP\s0 server (default: 120)
.Sp
\&\fBExactAddresses\fR \- If true the all \s-1ADDRESS\s0 arguments must be as
defined by \f(CW\*(C`addr\-spec\*(C'\fR in \s-1RFC2822\s0. If not given, or false, then
Net::SMTP will attempt to extract the address from the value passed.
.Sp
\&\fBDebug\fR \- Enable debugging information
.Sp
Example:
.Sp
.Vb 5
\&    $smtp = Net::SMTP\->new(\*(Aqmailhost\*(Aq,
\&                           Hello => \*(Aqmy.mail.domain\*(Aq,
\&                           Timeout => 30,
\&                           Debug   => 1,
\&                          );
\&
\&    # the same
\&    $smtp = Net::SMTP\->new(
\&                           Host => \*(Aqmailhost\*(Aq,
\&                           Hello => \*(Aqmy.mail.domain\*(Aq,
\&                           Timeout => 30,
\&                           Debug   => 1,
\&                          );
\&
\&    # Connect to the default server from Net::config
\&    $smtp = Net::SMTP\->new(
\&                           Hello => \*(Aqmy.mail.domain\*(Aq,
\&                           Timeout => 30,
\&                          );
.Ve
.SH "METHODS"
.IX Header "METHODS"
Unless otherwise stated all methods return either a \fItrue\fR or \fIfalse\fR
value, with \fItrue\fR meaning that the operation was a success. When a method
states that it returns a value, failure will be returned as \fIundef\fR or an
empty list.
.IP "banner ()" 4
.IX Item "banner ()"
Returns the banner message which the server replied with when the
initial connection was made.
.IP "domain ()" 4
.IX Item "domain ()"
Returns the domain that the remote \s-1SMTP\s0 server identified itself as during
connection.
.IP "hello ( \s-1DOMAIN\s0 )" 4
.IX Item "hello ( DOMAIN )"
Tell the remote server the mail domain which you are in using the \s-1EHLO\s0
command (or \s-1HELO\s0 if \s-1EHLO\s0 fails).  Since this method is invoked
automatically when the Net::SMTP object is constructed the user should
normally not have to call it manually.
.IP "host ()" 4
.IX Item "host ()"
Returns the value used by the constructor, and passed to IO::Socket::INET,
to connect to the host.
.IP "etrn ( \s-1DOMAIN\s0 )" 4
.IX Item "etrn ( DOMAIN )"
Request a queue run for the \s-1DOMAIN\s0 given.
.IP "auth ( \s-1USERNAME\s0, \s-1PASSWORD\s0 )" 4
.IX Item "auth ( USERNAME, PASSWORD )"
Attempt \s-1SASL\s0 authentication.
.IP "mail ( \s-1ADDRESS\s0 [, \s-1OPTIONS\s0] )" 4
.IX Item "mail ( ADDRESS [, OPTIONS] )"
.PD 0
.IP "send ( \s-1ADDRESS\s0 )" 4
.IX Item "send ( ADDRESS )"
.IP "send_or_mail ( \s-1ADDRESS\s0 )" 4
.IX Item "send_or_mail ( ADDRESS )"
.IP "send_and_mail ( \s-1ADDRESS\s0 )" 4
.IX Item "send_and_mail ( ADDRESS )"
.PD
Send the appropriate command to the server \s-1MAIL\s0, \s-1SEND\s0, \s-1SOML\s0 or \s-1SAML\s0. \f(CW\*(C`ADDRESS\*(C'\fR
is the address of the sender. This initiates the sending of a message. The
method \f(CW\*(C`recipient\*(C'\fR should be called for each address that the message is to
be sent to.
.Sp
The \f(CW\*(C`mail\*(C'\fR method can some additional \s-1ESMTP\s0 \s-1OPTIONS\s0 which is passed
in hash like fashion, using key and value pairs.  Possible options are:
.Sp
.Vb 8
\& Size        => <bytes>
\& Return      => "FULL" | "HDRS"
\& Bits        => "7" | "8" | "binary"
\& Transaction => <ADDRESS>
\& Envelope    => <ENVID>     # xtext\-encodes its argument
\& ENVID       => <ENVID>     # similar to Envelope, but expects argument encoded
\& XVERP       => 1
\& AUTH        => <submitter> # encoded address according to RFC 2554
.Ve
.Sp
The \f(CW\*(C`Return\*(C'\fR and \f(CW\*(C`Envelope\*(C'\fR parameters are used for \s-1DSN\s0 (Delivery
Status Notification).
.Sp
The submitter address in \f(CW\*(C`AUTH\*(C'\fR option is expected to be in a format as
required by \s-1RFC\s0 2554, in an RFC2821\-quoted form and xtext-encoded, or <> .
.IP "reset ()" 4
.IX Item "reset ()"
Reset the status of the server. This may be called after a message has been 
initiated, but before any data has been sent, to cancel the sending of the
message.
.IP "recipient ( \s-1ADDRESS\s0 [, \s-1ADDRESS\s0, [...]] [, \s-1OPTIONS\s0 ] )" 4
.IX Item "recipient ( ADDRESS [, ADDRESS, [...]] [, OPTIONS ] )"
Notify the server that the current message should be sent to all of the
addresses given. Each address is sent as a separate command to the server.
Should the sending of any address result in a failure then the process is
aborted and a \fIfalse\fR value is returned. It is up to the user to call
\&\f(CW\*(C`reset\*(C'\fR if they so desire.
.Sp
The \f(CW\*(C`recipient\*(C'\fR method can also pass additional case-sensitive \s-1OPTIONS\s0 as an
anonymous hash using key and value pairs.  Possible options are:
.Sp
.Vb 3
\&  Notify  => [\*(AqNEVER\*(Aq] or [\*(AqSUCCESS\*(Aq,\*(AqFAILURE\*(Aq,\*(AqDELAY\*(Aq]  (see below)
\&  ORcpt   => <ORCPT>
\&  SkipBad => 1        (to ignore bad addresses)
.Ve
.Sp
If \f(CW\*(C`SkipBad\*(C'\fR is true the \f(CW\*(C`recipient\*(C'\fR will not return an error when a bad
address is encountered and it will return an array of addresses that did
succeed.
.Sp
.Vb 5
\&  $smtp\->recipient($recipient1,$recipient2);  # Good
\&  $smtp\->recipient($recipient1,$recipient2, { SkipBad => 1 });  # Good
\&  $smtp\->recipient($recipient1,$recipient2, { Notify => [\*(AqFAILURE\*(Aq,\*(AqDELAY\*(Aq], SkipBad => 1 });  # Good
\&  @goodrecips=$smtp\->recipient(@recipients, { Notify => [\*(AqFAILURE\*(Aq], SkipBad => 1 });  # Good
\&  $smtp\->recipient("$recipient,$recipient2"); # BAD
.Ve
.Sp
Notify is used to request Delivery Status Notifications (DSNs), but your
\&\s-1SMTP/ESMTP\s0 service may not respect this request depending upon its version and
your site's \s-1SMTP\s0 configuration.
.Sp
Leaving out the Notify option usually defaults an \s-1SMTP\s0 service to its default
behavior equivalent to ['\s-1FAILURE\s0'] notifications only, but again this may be
dependent upon your site's \s-1SMTP\s0 configuration.
.Sp
The \s-1NEVER\s0 keyword must appear by itself if used within the Notify option and \*(L"requests
that a \s-1DSN\s0 not be returned to the sender under any conditions.\*(R"
.Sp
.Vb 1
\&  {Notify => [\*(AqNEVER\*(Aq]}
\&
\&  $smtp\->recipient(@recipients, { Notify => [\*(AqNEVER\*(Aq], SkipBad => 1 });  # Good
.Ve
.Sp
You may use any combination of these three values '\s-1SUCCESS\s0','\s-1FAILURE\s0','\s-1DELAY\s0' in
the anonymous array reference as defined by \s-1RFC3461\s0 (see http://rfc.net/rfc3461.html
for more information.  Note: quotations in this topic from same.).
.Sp
A Notify parameter of '\s-1SUCCESS\s0' or '\s-1FAILURE\s0' \*(L"requests that a \s-1DSN\s0 be issued on
successful delivery or delivery failure, respectively.\*(R"
.Sp
A Notify parameter of '\s-1DELAY\s0' \*(L"indicates the sender's willingness to receive
delayed DSNs.  Delayed DSNs may be issued if delivery of a message has been
delayed for an unusual amount of time (as determined by the Message Transfer
Agent (\s-1MTA\s0) at which the message is delayed), but the final delivery status
(whether successful or failure) cannot be determined.  The absence of the \s-1DELAY\s0
keyword in a \s-1NOTIFY\s0 parameter requests that a \*(R"delayed\*(L" \s-1DSN\s0 \s-1NOT\s0 be issued under
any conditions.\*(R"
.Sp
.Vb 1
\&  {Notify => [\*(AqSUCCESS\*(Aq,\*(AqFAILURE\*(Aq,\*(AqDELAY\*(Aq]}
\&
\&  $smtp\->recipient(@recipients, { Notify => [\*(AqFAILURE\*(Aq,\*(AqDELAY\*(Aq], SkipBad => 1 });  # Good
.Ve
.Sp
ORcpt is also part of the \s-1SMTP\s0 \s-1DSN\s0 extension according to \s-1RFC3461\s0.
It is used to pass along the original recipient that the mail was first
sent to.  The machine that generates a \s-1DSN\s0 will use this address to inform
the sender, because he can't know if recipients get rewritten by mail servers.
It is expected to be in a format as required by \s-1RFC3461\s0, xtext-encoded.
.IP "to ( \s-1ADDRESS\s0 [, \s-1ADDRESS\s0 [...]] )" 4
.IX Item "to ( ADDRESS [, ADDRESS [...]] )"
.PD 0
.IP "cc ( \s-1ADDRESS\s0 [, \s-1ADDRESS\s0 [...]] )" 4
.IX Item "cc ( ADDRESS [, ADDRESS [...]] )"
.IP "bcc ( \s-1ADDRESS\s0 [, \s-1ADDRESS\s0 [...]] )" 4
.IX Item "bcc ( ADDRESS [, ADDRESS [...]] )"
.PD
Synonyms for \f(CW\*(C`recipient\*(C'\fR.
.IP "data ( [ \s-1DATA\s0 ] )" 4
.IX Item "data ( [ DATA ] )"
Initiate the sending of the data from the current message.
.Sp
\&\f(CW\*(C`DATA\*(C'\fR may be a reference to a list or a list. If specified the contents
of \f(CW\*(C`DATA\*(C'\fR and a termination string \f(CW".\er\en"\fR is sent to the server. And the
result will be true if the data was accepted.
.Sp
If \f(CW\*(C`DATA\*(C'\fR is not specified then the result will indicate that the server
wishes the data to be sent. The data must then be sent using the \f(CW\*(C`datasend\*(C'\fR
and \f(CW\*(C`dataend\*(C'\fR methods described in Net::Cmd.
.IP "expand ( \s-1ADDRESS\s0 )" 4
.IX Item "expand ( ADDRESS )"
Request the server to expand the given address Returns an array
which contains the text read from the server.
.IP "verify ( \s-1ADDRESS\s0 )" 4
.IX Item "verify ( ADDRESS )"
Verify that \f(CW\*(C`ADDRESS\*(C'\fR is a legitimate mailing address.
.Sp
Most sites usually disable this feature in their \s-1SMTP\s0 service configuration.
Use \*(L"Debug => 1\*(R" option under \fInew()\fR to see if disabled.
.ie n .IP "help ( [ $subject ] )" 4
.el .IP "help ( [ \f(CW$subject\fR ] )" 4
.IX Item "help ( [ $subject ] )"
Request help text from the server. Returns the text or undef upon failure
.IP "quit ()" 4
.IX Item "quit ()"
Send the \s-1QUIT\s0 command to the remote \s-1SMTP\s0 server and close the socket connection.
.SH "ADDRESSES"
.IX Header "ADDRESSES"
Net::SMTP attempts to \s-1DWIM\s0 with addresses that are passed. For
example an application might extract The From: line from an email
and pass that to \fImail()\fR. While this may work, it is not recommended.
The application should really use a module like Mail::Address
to extract the mail address and pass that.
.PP
If \f(CW\*(C`ExactAddresses\*(C'\fR is passed to the constructor, then addresses
should be a valid rfc2821\-quoted address, although Net::SMTP will
accept accept the address surrounded by angle brackets.
.PP
.Vb 3
\& funny user@domain      WRONG
\& "funny user"@domain    RIGHT, recommended
\& <"funny user"@domain>  OK
.Ve

.\" Oracle has added the ARC stability level to this manual page
.SH ATTRIBUTES
See
.BR attributes (5)
for descriptions of the following attributes:
.sp
.TS
box;
cbp-1 | cbp-1
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE 
=
Availability	runtime/perl-512
=
Stability	Uncommitted
.TE 
.PP
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Net::Cmd
.SH "AUTHOR"
.IX Header "AUTHOR"
Graham Barr <gbarr@pobox.com>
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 1995\-2004 Graham Barr. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.


.SH NOTES

.\" Oracle has added source availability information to this manual page
This software was built from source available at https://java.net/projects/solaris-userland.  The original community source was downloaded from  http://www.cpan.org/src/5.0/perl-5.12.5.tar.bz2

Further information about this software can be found on the open source community website at http://www.perl.org/.