php发邮件原生不用插件

原文http://jingyan.baidu.com/article/7f766daf436b9b4101e1d0e2.html 因为以前一套代码用smtp发老发不出去，以为代码原因，所以down了这个，但还是一样，不是代码原因，应当是服务器限制。

代码正文双击正文可选择全部

1[代码][php]自己修改后的，可以用，和自己另一套一样好用，但不确定有没有bug

<?php
//引入发送邮件类
#require("smtp.php"); 
//使用163邮箱服务器
$smtpserver = "smtp.163.com";
#$smtpserver = "smtp.exmail.qq.com";
//163邮箱服务器端口 
$smtpserverport = 25;
//你的163服务器邮箱账号
$smtpusermail = "qqtxt@163.com";
#$smtpusermail = "admin@168eai.com";
//收件人邮箱
$smtpemailto = "2300138226@qq.com";
//你的邮箱账号(去掉@163.com)
$smtpuser = "qqtxt";//SMTP服务器的用户帐号 
#$smtpuser = "admin";//SMTP服务器的用户帐号 
//你的邮箱密码
$smtppass = "163zhh1981"; //SMTP服务器的用户密码 
#$smtppass = "zhh1981zhh"; //SMTP服务器的用户密码 
//邮件主题 
$mailsubject = "测试邮件发送";
//邮件内容 
$mailbody = "ma863服务器这里面的一个true是表示使用身份验证,否则不使用身份验证. a";
//邮件格式（HTML/TXT）,TXT为文本邮件 
$mailtype = "TXT";
//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. 
$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);
//是否显示发送的调试信息 
$smtp->debug = true;
//发送邮件
$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

/** 		
* 原生发邮件类   jetee改动版把所有ereg  改成了preg
* @link http://jingyan.baidu.com/article/7f766daf436b9b4101e1d0e2.html
* @author 	
* @version 0.0.1  16:41 2015/3/17
*/
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 = preg_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_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 (!preg_match("/^[23]/", $response))  
        //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_error($string) 
    { 
        $this->log_write("Error: Error occurred while ".$string.".\n"); 
        return FALSE; 
    }

function strip_comment($address) 
    { 
        $comment = "/$[^()]*$/";
        while (preg_match($comment, $address))  
        { 
            $address = preg_replace($comment, "", $address); 
        } 
        return $address; 
    }

function get_address($address) 
    { 
        $address = preg_replace("/([ \t\r\n])+/", "", $address); 
        $address = preg_replace("/^.*<(.+)>.*$/", "\1", $address); 
        return $address; 
    }

function smtp_debug($message) 
    { 
        if ($this->debug)  
        { 
            echo $message; 
        } 
    }

} 
?>

2[代码][php]从网上copy的

<?php
//引入发送邮件类
#require("smtp.php"); 
//使用163邮箱服务器
$smtpserver = "smtp.163.com";
#$smtpserver = "smtp.exmail.qq.com";
//163邮箱服务器端口 
$smtpserverport = 25;
//你的163服务器邮箱账号
$smtpusermail = "qqtxt@163.com";
#$smtpusermail = "admin@168eai.com";
//收件人邮箱
$smtpemailto = "112738102@qq.com";
//你的邮箱账号(去掉@163.com)
$smtpuser = "qqtxt";//SMTP服务器的用户帐号 
#$smtpuser = "admin";//SMTP服务器的用户帐号 
//你的邮箱密码
$smtppass = "163zhh1981"; //SMTP服务器的用户密码 
#$smtppass = "zhh1981zhh"; //SMTP服务器的用户密码 
//邮件主题 
$mailsubject = "测试邮件发送";
//邮件内容 
$mailbody = "本机asSpserver = smtp.exmail.qq.com;器的用里面的一个true是表示使用身份验证,否则不使用身份验户密码dd  sa a";
//邮件格式（HTML/TXT）,TXT为文本邮件 
$mailtype = "TXT";
//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. 
$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);
//是否显示发送的调试信息 
$smtp->debug = true;
//发送邮件
$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

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;

/* 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));

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_error($string) 
    { 
        $this->log_write("Error: Error occurred while ".$string.".\n"); 
        return FALSE; 
    }

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; 
        } 
    }

} 
?>