文章目录：
PHP发送邮件的源码
mail()函数发送的邮件基本上都被当作垃圾邮件过滤掉了，很少会到达用户邮箱的。因为它不需要邮件帐户就可以发邮件。商业网站php中发送邮件都是用sendmail。
php发送邮件代码要最新的网上试了很多都不成功
亲，很高兴为你解答：
首先，在PHP中可以使用SMTP或内置mail()函数来发送邮件。前者的好处是投递率高、被认定为垃圾邮件的几率小、但需要有SMTP服务器；后者是无需配置，但极易被认定为垃圾邮件。
第一种方法：SMTP：
增加一个SMTP类，命名为class.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 = "", $smtp_port = 25,$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 $this-smtp_error("sending CRLF.CRLF [EOM]");
}
if (!$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 (!@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;
}
}
}
?
然后在PHP里面引用该文件后，这样调用发送邮件：
?php
require_once("class.smtp.php");
$smtpserver = "";//SMTP服务器
$smtpserverport = 25;//SMTP服务器端口
$smtpusermail = "";//SMTP服务器的用户邮箱
$smtpemailto = "";//发送给谁
$smtpuser = "";//SMTP服务器的用户帐号
$smtppass = "";//SMTP服务器的用户密码
$mailsubject = "";//邮件主题
$mailbody = "";//邮件内容
$mailtype = "HTML";//邮件格式（HTML/TXT）
$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);//这里面的一个true是表示使用身份验证,否则不使用身份验证
$smtp-debug = TRUE;//是否显示发送的调试信息
$smtp-sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);
?
第二种方法：mail()函数
?php
$to = "somebody@example.com, somebodyelse@example.com";
$subject = "HTML email";
$message = "
html
head
titleHTML email/title
/head
body
pThis email contains HTML Tags!/p
/body
/html
";
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=iso-8859-1" . "\r\n";
// 其他报头
$headers .= 'From: webmaster@example.com' . "\r\n";
$headers .= 'Cc: myboss@example.com' . "\r\n";
mail($to,$subject,$message,$headers);
?
-----------------------------------
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怎么实现php发送邮件附件？需要源代码!
服务器必须开启SMTP服务，代码function smail($smtp,$title,$username,$passwd,$mailfrom,$mailfrom1,$rcptto,$mail){
$message="";
$message .= "正在连接服务器...br";
$link = fsockopen($smtp,25);
if ($link){
set_socket_blocking($link,true);
$lastmessage=fgets($link,512);
if (!ereg("^220",$lastmessage)){
$message .= "与服务器连接失败" . $lastmessage . "br";
}
else{
$message .= "与服务器连接成功,服务器就绪：" . $lastmessage . "br";
fputs($link,"HELO phpsetmail"."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^250",$lastmessage)){
$message .= "与服务器HELO成功：" .$lastmessage. "br";
}
else{
$message .= "与服务器HELO失败：" .$lastmessage. "br";
}
fputs($link,"AUTH LOGIN"."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^334",$lastmessage)){
$message .= "请求与服务器进行用户验证成功：" .$lastmessage. "br";
}
else{
$message .= "请求与服务器进行用户验证失败：" .$lastmessage. "br";
}
fputs($link,base64_encode($username)."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^334",$lastmessage)){
$message .= "与服务器用户验证成功：" .$lastmessage. "br";
}
else{
$message .= "与服务器用户验证失败：" .$lastmessage. "br";
}
fputs($link,base64_encode($passwd)."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^235",$lastmessage)){
$message .= "与服务器密码验证成功：" .$lastmessage. "br";
}
else{
$message .= "与服务器密码验证失败：" .$lastmessage. "br";
}
fputs($link,"MAIL FROM:$mailfrom"."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^250",$lastmessage)){
$message .= "与服务器MAIL FROM成功：" .$lastmessage. "br";
}
else{
$message .= "与服务器MAIL FROM失败：" .$lastmessage. "br";
}
fputs($link,"RCPT TO:$rcptto"."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^250",$lastmessage)){
$message .= "与服务器RCPT TO成功：" .$lastmessage. "br";
}
else{
$message .= "与服务器RCPT TO失败：" .$lastmessage. "br";
}
fputs($link,"DATA"."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^354",$lastmessage)){
$message .= "请求与服务器发送邮件数据成功：" .$lastmessage. "br";
fputs($link,"Content-Type:text/html charset=gb2312 \r\n");
fputs($link,"From:$mailfrom" . "\r\n");
fputs($link,"Subject:$title" . "\r\n");
fputs($link,"To:$rcptto" . "\r\n");
fputs($link,"X-Mailer: autokeeper". "\r\n");
fputs($link,"\r\n");
fputs($link,$mail . "\r\n");
fputs($link,"." . "\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^250",$lastmessage)){
$message .= "发送邮件数据成功：" .$lastmessage. "br";
}
else{
$message .= "发送邮件数据失败：" .$lastmessage. "br";
}
}
else{
echo "请求与服务器发送邮件数据成功：" .$lastmessage. "br";
}
fputs($link,"QUIT"."\r\n");
$lastmessage=fgets($link,2000);
if (ereg("^221",$lastmessage)){
$message .= "与服务器断开连接成功：" .$lastmessage. "br";
}
else{
$message .= "与服务器断开连接失败：" .$lastmessage. "br";
}
}
}
else{
echo "error";
}
fclose($link);
}
d." ".$arg; } } fputs($this-sock, $cmd."\r\n"); $th