| Net::SMTP - Simple Mail Transfer Protocol Client |
Net::SMTP - Simple Mail Transfer Protocol Client
use Net::SMTP;
# Constructors
$smtp = Net::SMTP->new('mailhost');
$smtp = Net::SMTP->new('mailhost', Timeout => 60);
This module implements a client interface to the SMTP and ESMTP protocol, enabling a perl5 application to talk to SMTP servers. This documentation assumes that you are familiar with the concepts of the SMTP protocol described in RFC821.
A new Net::SMTP object must be created with the new method. Once this has been done, all SMTP commands are accessed through this object.
The Net::SMTP class is a subclass of Net::Cmd and IO::Socket::INET.
This example prints the mail domain name of the SMTP server known as mailhost:
#!/usr/local/bin/perl -w
use Net::SMTP;
$smtp = Net::SMTP->new('mailhost');
print $smtp->domain,"\n";
$smtp->quit;
This example sends a small message to the postmaster at the SMTP server known as mailhost:
#!/usr/local/bin/perl -w
use Net::SMTP;
$smtp = Net::SMTP->new('mailhost');
$smtp->mail($ENV{USER});
$smtp->to('postmaster');
$smtp->data();
$smtp->datasend("To: postmaster\n");
$smtp->datasend("\n");
$smtp->datasend("A simple test message\n");
$smtp->dataend();
$smtp->quit;
HOST is the
name of the remote host to which an SMTP connection is required.
If HOST is an array reference then each value will be attempted
in turn until a connection is made.
If HOST is not given, then the SMTP_Host specified in Net::Config
will be used.
OPTIONS are passed in a hash like fashion, using key and value pairs.
Possible options are:
Hello - SMTP requires that you identify yourself. This option specifies a string to pass as your mail domain. If not given a guess will be taken.
LocalAddr and LocalPort - These parameters are passed directly to IO::Socket to allow binding the socket to a local port.
Timeout - Maximum time, in seconds, to wait for a response from the SMTP server (default: 120)
ExactAddresses - If true the all ADDRESS arguments must be as
defined by addr-spec in RFC2822. If not given, or false, then
Net::SMTP will attempt to extract the address from the value passed.
Debug - Enable debugging information
Example:
$smtp = Net::SMTP->new('mailhost',
Hello => 'my.mail.domain'
Timeout => 30,
Debug => 1,
);
Unless otherwise stated all methods return either a true or false value, with true meaning that the operation was a success. When a method states that it returns a value, failure will be returned as undef or an empty list.
ADDRESS
is the address of the sender. This initiates the sending of a message. The
method recipient should be called for each address that the message is to
be sent to.
The mail method can some additional ESMTP OPTIONS which is passed
in hash like fashion, using key and value pairs. Possible options are:
Size => <bytes> Return => "FULL" | "HDRS" Bits => "7" | "8" | "binary" Transaction => <ADDRESS> Envelope => <ENVID>
The Return and Envelope parameters are used for DSN (Delivery
Status Notification).
reset if they so desire.
The recipient method can some additional OPTIONS which is passed
in hash like fashion, using key and value pairs. Possible options are:
Notify => SkipBad => ignore bad addresses
If SkipBad is true the recipient will not return an error when a
bad address is encountered and it will return an array of addresses
that did succeed.
$smtp->recipient($recipient1,$recipient2); # Good
$smtp->recipient($recipient1,$recipient2, { SkipBad => 1 }); # Good
$smtp->recipient("$recipient,$recipient2"); # BAD
recipient.
DATA may be a reference to a list or a list. If specified the contents
of DATA and a termination string ".\r\n" is sent to the server. And the
result will be true if the data was accepted.
If DATA 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 datasend
and dataend methods described in the Net::Cmd manpage.
ADDRESS is a legitimate mailing address.
Net::SMTP attempts to DWIM with addresses that are passed. For example an application might extract The From: line from an email and pass that to mail(). While this may work, it is not reccomended. The application should really use a module like the Mail::Address manpage to extract the mail address and pass that.
If ExactAddresses is passed to the contructor, then addresses
should be a valid rfc2821-quoted address, although Net::SMTP will
accept accept the address surrounded by angle brackets.
funny user@domain WRONG "funny user"@domain RIGHT, recommended <"funny user"@domain> OK
Graham Barr <gbarr@pobox.com>
Copyright (c) 1995-1997 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.
$Id: //depot/libnet/Net/SMTP.pm#31 $
| Net::SMTP - Simple Mail Transfer Protocol Client |