[php]smtp.class.php

Set_time_limit (120);
Class Smtp_mail
{
var $host; Host
var $port; Port is typically 25
var $user; SMTP-certified Accounts
var $pass; Authentication password
var $debug = false; Do you want to display and server session information?
var $conn;
var $result _str; Results
var $in; Commands sent by the client
var $from _r; A real source mailbox, typically the same as the user name of the SMTP server, or it may be sent unsuccessfully due to the SMTP server's settings
var $mailformat = 0; Message Format 0 = Plain Text 1=html Mail
function Smtp_mail ($host, $port, $user, $pass, $debug =false)
{
$this->host = $host;
$this->port = $port;
$this->user = Base64_encode ($user);
$this->pass = Base64_encode ($pass);
$this->debug = $debug;
$this->socket = socket_create (Af_inet, Sock_stream, sol_tcp); Please refer to the manual for specific usage.
if ($this->socket)
{
$this->result_str = "Create socket:". Socket_strerror (Socket_last_error ());
$this->debug_show ($this->result_str);
}
Else
{
Exit ("Initialize failed, please check your network connection and parameters");
}
$this->conn = Socket_connect ($this->socket, $this->host, $this->port);
if ($this->conn)
{
$this->result_str = "Create socket Connection:". Socket_strerror (Socket_last_error ());
$this->debug_show ($this->result_str);
}
Else
{
Exit ("Initialize failed, please check your network connection and parameters");
}
$this->result_str = "Server Answer:". Socket_read ($this->socket, 1024). "";
$this->debug_show ($this->result_str);


}

function Debug_show ($STR)
{
if ($this->debug)
{
echo $str. "

\ r \ n ";
}
}

function Send ($from, $to, $subject, $body)
{
if ($from = = "" | | $to = = "")
{
Exit ("Please enter your email address");
}
if ($subject = = "") $sebject = "Untitled";
if ($body = = "") $body = "no content";

$All = "From:". $from. " \ r \ n ";
$All. = "To:". $to. " \ r \ n ";
$All. = "Subject:". $subject. " \ r \ n ";
if ($this->mailformat==1) $All. = "content-type:text/html;\r\n";
else $All. = "content-type:text/plain;\r\n";
$All. = "charset=gb2312\r\n\r\n";
$All. = $body;
/*
If the content of the $all is added, it can be implemented to send MIME messages.
But we need to add a lot of programs.
*/


The following are the and server sessions
$this->in = "EHLO helo\r\n";
$this->docommand ();

$this->in = "AUTH login\r\n";
$this->docommand ();

$this->in = $this->user. " \ r \ n ";
$this->docommand ();

$this->in = $this->pass. " \ r \ n ";
$this->docommand ();

if (!eregi ("235", $this->result_str)) {
$this->result_str = "SMTP authentication failed";
$this->debug_show ($this->result_str);
return 0;
}

$this->in = "MAIL from:" $from. " \ r \ n ";
$this->docommand ();

$this->in = "RCPT to:" $to. " \ r \ n ";
$this->docommand ();

$this->in = "data\r\n";
$this->docommand ();

$this->in = $All. " \r\n.\r\n ";
$this->docommand ();

if (!eregi ("+", $this->result_str)) {
$this->result_str = "message sent Failed";
$this->debug_show ($this->result_str);
return 0;
}

$this->in = "quit\r\n";
$this->docommand ();

End, close connection
return 1;
}

function DoCommand ()
{
Socket_write ($this->socket, $this->in, strlen ($this->in));
$this->debug_show ("Client command:". $this->in);
$this->result_str = "Server Answer:". Socket_read ($this->socket, 1024). "";
$this->debug_show ($this->result_str);
}

}//end Class
?>


First, fill in the contents of the above program in the file, such as:
var $ host= "smtp.sina.com.cn"; Host
var $port = "25"; Port is typically 25
var $user = "Users"; SMTP-certified Accounts
var $pass = "users123; Authentication password

Then put this file on your site, as long as your site's program access to the line,.
And then to use the e-mail program included in such as: Include (' smtp.class.php ');
And then use it in this email program.
$mails =new Smtp_mail ();
if ($mail->send ("Sender's Address", "Recipient's email address", "subject", "content")) {
echo "sent successfully!";
}else{
echo "Mail server busy, please try again later";
}

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