A complete SMTP class for PHP (resolves the problem when the mail server needs to be validated) _php Foundation

smtp.php

<?php
Class SMTP

{

/* Public Variables * *

var $smtp _port;

var $time _out;

var $host _name;

var $log _file;

var $relay _host;

var $debug;

var $auth;

var $user;

var $pass;

* Private Variables * *
var $sock;

* Constractor * *

function smtp ($relay _host = "", $smtp _port = =, $auth = False, $user, $pass)

{

$this->debug = FALSE;

$this->smtp_port = $smtp _port;

$this->relay_host = $relay _host;

$this->time_out = 30; is used in Fsockopen ()
#

$this->auth = $auth;//auth

$this->user = $user;

$this->pass = $pass;

#

$this->host_name = "localhost"; is used in HELO command
$this->log_file = "";

$this->sock = FALSE;

}

/* Main Function/*

function SendMail ($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $BCC = "", $additional _headers = "")

{

$mail _from = $this->get_address ($this->strip_comment ($from));

$body = ereg_replace ("^|" ( \ r \ n) (\.) "," \1.\3 ", $body);

$header. = "mime-version:1.0\r\n";

if ($mailtype = = "HTML") {

$header. = "content-type:text/html\r\n";

}

$header. = "To:". $to. " \ r \ n ";

if ($cc!= "") {

$header. = "Cc:". $cc. " \ r \ n ";

}

$header. = "From: $from <". $from. " >\r\n ";

$header. = "Subject:". $subject. " \ r \ n ";

$header. = $additional _headers;

$header. = "Date:". Date ("R"). " \ r \ n ";

$header. = "X-mailer:by Redhat (php/). Phpversion ().") \ r \ n ";

List ($msec, $sec) = Explode ("", Microtime ());

$header. = "Message-id: <". Date ("Ymdhis", $sec). ($msec *1000000). ".". $mail _from. " >\r\n ";

$TO = Explode (",", $this->strip_comment ($to));

if ($cc!= "") {

$TO = Array_merge ($TO, Explode (",", $this->strip_comment ($CC)));

}

if ($bcc!= "") {

$TO = Array_merge ($TO, Explode (",", $this->strip_comment ($BCC)));

}

$sent = TRUE;

foreach ($TO as $rcpt _to) {

$RCPT _to = $this->get_address ($rcpt _to);

if (! $this->smtp_sockopen ($rcpt _to)) {

$this->log_write ("Error:cannot send email to". $rcpt _to. " \ n ");

$sent = FALSE;

Continue

}

if ($this->smtp_send ($this->host_name, $mail _from, $rcpt _to, $header, $body)) {

$this->log_write ("e-mail has been sent to <". $rcpt _to. " >\n ");

} else {

$this->log_write ("Error:cannot Send email to <". $rcpt _to. " >\n ");

$sent = FALSE;

}

Fclose ($this->sock);

$this->log_write ("Disconnected from remote host\n");

}

return $sent;

}

* Private Functions * *

function Smtp_send ($helo, $from, $to, $header, $body = "")

{

if (! $this->smtp_putcmd ("HELO", $helo)) {

return $this->smtp_error ("Sending HELO command");

}

#auth

if ($this->auth) {

if (! $this->smtp_putcmd ("AUTH LOGIN", Base64_encode ($this->user)) {

return $this->smtp_error ("Sending HELO command");

}

if (! $this->smtp_putcmd ("", Base64_encode ($this->pass))) {

return $this->smtp_error ("Sending HELO command");

}

}

#

if (! $this->smtp_putcmd ("MAIL", "from:<". $from. " > ")) {

return $this->smtp_error ("Sending MAIL from command");

}

if (! $this->smtp_putcmd ("RCPT", "to:<". $to. " > ")) {

return $this->smtp_error ("Sending RCPT to command");

}

if (! $this->smtp_putcmd ("DATA")) {

return $this->smtp_error ("Sending DATA command");

}

if (! $this->smtp_message ($header, $body)) {

return $this->smtp_error ("Sending message");

}

if (! $this->smtp_eom ()) {

return $this->smtp_error ("Sending <CR><LF>.<CR><LF> [EOM]");

}

if (! $this->smtp_putcmd ("QUIT")) {

return $this->smtp_error ("Sending QUIT command");

}

return TRUE;

}

function Smtp_sockopen ($address)

{

if ($this->relay_host = "") {

return $this->smtp_sockopen_mx ($address);

} else {

return $this->smtp_sockopen_relay ();

}

}

function Smtp_sockopen_relay ()

{

$this->log_write ("trying to". $this->relay_host. ":" $this->smtp_port. " \ n ");

$this->sock = @fsockopen ($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);

if (!) ( $this->sock && $this->SMTP_OK ())) {

$this->log_write ("Error:cannot connenct to relay host". $this->relay_host. " \ n ");

$this->log_write ("Error:". $errstr. " (". $errno.") \ n ");

return FALSE;

}

$this->log_write ("Connected to relay Host". $this->relay_host. " \ n ");

return TRUE;;;

}

function Smtp_sockopen_mx ($address)

{

$domain = Ereg_replace ("^.+@ ([^@]+) $", "\1", $address);

if (! @getmxrr ($domain, $MXHOSTS)) {

$this->log_write ("error:cannot resolve MX \" ". $domain." \ n ");

return FALSE;

}

foreach ($MXHOSTS as $host) {

$this->log_write ("trying to". $host. ":". $this->smtp_port. " \ n ");

$this->sock = @fsockopen ($host, $this->smtp_port, $errno, $errstr, $this->time_out);

if (!) ( $this->sock && $this->SMTP_OK ())) {

$this->log_write ("Warning:cannot Connect to MX host". $host. " \ n ");

$this->log_write ("Error:". $errstr. " (". $errno.") \ n ");

Continue

}

$this->log_write ("Connected to MX host". $host. " \ n ");

return TRUE;

}

$this->log_write ("Error:cannot connect to any MX hosts (". Implode (",", $MXHOSTS). ") \ n ");

return FALSE;

}

function Smtp_message ($header, $body)

{

Fputs ($this->sock, $header. " \ r \ n ". $body);

$this->smtp_debug (">". Str_replace ("\ r \ n", "\ n".) > ", $header." \n> ". $body." \n> "));

return TRUE;

}

function Smtp_eom ()

{

Fputs ($this->sock, "\r\n.\r\n");

$this->smtp_debug (". [eom]\n ");

return $this->SMTP_OK ();

}

function Smtp_ok ()

{

$response = Str_replace ("\ r \ n", "" ", Fgets ($this->sock, 512));

$this->smtp_debug ($response.) \ n ");

if (!ereg ("^[23]", $response)) {

Fputs ($this->sock, "quit\r\n");

Fgets ($this->sock, 512);

$this->log_write ("Error:remote host returned \" ". $response." \ n ");

return FALSE;

}

return TRUE;

}

function Smtp_putcmd ($cmd, $arg = "")

{

if ($arg!= "") {

if ($cmd = = "") $cmd = $arg;

else $cmd = $cmd. " ". $arg;

}

Fputs ($this->sock, $cmd. " \ r \ n ");

$this->smtp_debug (">". $cmd. " \ n ");

return $this->SMTP_OK ();

}

function Smtp_error ($string)

{

$this->log_write ("Error:error occurred while". $string. ". \ n ");

return FALSE;

}

function Log_write ($message)

{

$this->smtp_debug ($message);

if ($this->log_file = "") {

return TRUE;

}

$message = Date ("M D h:i:s"). Get_current_user (). [". Getmypid ()."]: ". $message;

if (log_file ">! @file_exists ($this->log_file) | |! ( $fp = @fopen ($this->log_file, "a"))) {

$this->smtp_debug ("warning:cannot open log file \" ". $this->log_file." \ n ");

return FALSE;;;

}

Flock ($FP, LOCK_EX);

Fputs ($fp, $message);

Fclose ($FP);

return TRUE;

}

function Strip_comment ($address)

{

$comment = "\ ([^ ()]*\)";

while (Ereg ($comment, $address)) {

$address = ereg_replace ($comment, "", $address);

}

return $address;

}

function Get_address ($address)

{

$address = Ereg_replace ("([\t\r\n]) +", "", $address);

$address = Ereg_replace ("^.*< (. +) >.*$", "\1", $address);

return $address;

}

function Smtp_debug ($message)

{

if ($this->debug) {

Echo $message;

}

}

}

?>

test.php

<?php

/*

This is a test program!!!

Please follow the instructions to set the following parameters, which are set by the Tom.com user example.

*/

Require ("sm.php");

##########################################

$smtpserver = "smtp.tom.com";//SMTP server

$smtpserverport =25;//SMTP Server Port

$smtpusermail = "someone@tom.com";//smtp user mailboxes for the server

$smtpemailto = "jack@knowsky.com";/sent to whom

$smtpuser = "Someone";//smtp user account for the server

$smtppass = "Someonepass";//smtp user password for the server

$mailsubject = "Test Subject";//Message subject

$mailbody = "

$mailtype = "HTML";//Message Format (html/txt), TXT to text message

##########################################

$SMTP = new SMTP ($smtpserver, $smtpserverport, True, $smtpuser, $smtppass);//One of the true in this is to use authentication, otherwise authentication is not used.

$SMTP->debug = true;//whether to display the debug information sent

$smtp->sendmail ($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

?>