PHP SMTP发送邮件函数使用方法 sendmail('发送地址', '邮件主题', '邮件内容')

[PHP]代码

$bfconfig = Array (      'sitename' => '网站名称',      );    $mail = Array (      'state' => 1,      'server' => 'smtp.abc.com',      'port' => 25,      'auth' => 1,      'username' => 'admin@abc.com',      'password' => '123456',      'charset' => 'gbk',      'mailfrom' => 'admin@abc.com'      );    function sendmail($mail_to, $mail_subject, $mail_message) {        global $mail, $bfconfig;        date_default_timezone_set('PRC');        $mail_subject = '=?'.$mail['charset'].'?B?'.base64_encode($mail_subject).'?=';      $mail_message = chunk_split(base64_encode(preg_replace("/(^|(\r\n))(\.)/", "\1.\3", $mail_message)));        $headers .= "";      $headers .= "MIME-Version:1.0\r\n";      $headers .= "Content-type:text/html\r\n";      $headers .= "Content-Transfer-Encoding: base64\r\n";      $headers .= "From: ".$bfconfig['sitename']."<".$mail['mailfrom'].">\r\n";      $headers .= "Date: ".date("r")."\r\n";      list($msec, $sec) = explode(" ", microtime());      $headers .= "Message-ID: <".date("YmdHis", $sec).".".($msec * 1000000).".".$mail['mailfrom'].">\r\n";        if(!$fp = fsockopen($mail['server'], $mail['port'], $errno, $errstr, 30)) {          exit("CONNECT - Unable to connect to the SMTP server");      }        stream_set_blocking($fp, true);        $lastmessage = fgets($fp, 512);      if(substr($lastmessage, 0, 3) != '220') {          exit("CONNECT - ".$lastmessage);      }        fputs($fp, ($mail['auth'] ? 'EHLO' : 'HELO')." befen\r\n");      $lastmessage = fgets($fp, 512);      if(substr($lastmessage, 0, 3) != 220 && substr($lastmessage, 0, 3) != 250) {          exit("HELO/EHLO - ".$lastmessage);      }        while(1) {          if(substr($lastmessage, 3, 1) != '-' || empty($lastmessage)) {              break;          }          $lastmessage = fgets($fp, 512);      }        if($mail['auth']) {          fputs($fp, "AUTH LOGIN\r\n");          $lastmessage = fgets($fp, 512);          if(substr($lastmessage, 0, 3) != 334) {              exit($lastmessage);          }            fputs($fp, base64_encode($mail['username'])."\r\n");          $lastmessage = fgets($fp, 512);          if(substr($lastmessage, 0, 3) != 334) {              exit("AUTH LOGIN - ".$lastmessage);          }            fputs($fp, base64_encode($mail['password'])."\r\n");          $lastmessage = fgets($fp, 512);          if(substr($lastmessage, 0, 3) != 235) {              exit("AUTH LOGIN - ".$lastmessage);          }            $email_from = $mail['mailfrom'];      }        fputs($fp, "MAIL FROM: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $email_from).">\r\n");      $lastmessage = fgets($fp, 512);      if(substr($lastmessage, 0, 3) != 250) {          fputs($fp, "MAIL FROM: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $email_from).">\r\n");          $lastmessage = fgets($fp, 512);          if(substr($lastmessage, 0, 3) != 250) {              exit("MAIL FROM - ".$lastmessage);          }      }        foreach(explode(',', $mail_to) as $touser) {          $touser = trim($touser);          if($touser) {              fputs($fp, "RCPT TO: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $touser).">\r\n");              $lastmessage = fgets($fp, 512);              if(substr($lastmessage, 0, 3) != 250) {                  fputs($fp, "RCPT TO: <".preg_replace("/.*\<(.+?)\>.*/", "\\1", $touser).">\r\n");                  $lastmessage = fgets($fp, 512);                  exit("RCPT TO - ".$lastmessage);              }          }      }        fputs($fp, "DATA\r\n");      $lastmessage = fgets($fp, 512);      if(substr($lastmessage, 0, 3) != 354) {          exit("DATA - ".$lastmessage);      }        fputs($fp, $headers);      fputs($fp, "To: ".$mail_to."\r\n");      fputs($fp, "Subject: $mail_subject\r\n");      fputs($fp, "\r\n\r\n");      fputs($fp, "$mail_message\r\n.\r\n");      $lastmessage = fgets($fp, 512);      if(substr($lastmessage, 0, 3) != 250) {          exit("END - ".$lastmessage);      }        fputs($fp, "QUIT\r\n");    }