PHPSMTP发送邮件函数-PHP源码

$bfcOnfig= Array (
	&＃39;sitename&＃39; => &＃39;网站名称&＃39;,
	);

$mail = Array (
	&＃39;state&＃39; => 1,
	&＃39;server&＃39; => &＃39;smtp.abc.com&＃39;,
	&＃39;port&＃39; => 25,
	&＃39;auth&＃39; => 1,
	&＃39;username&＃39; => &＃39;admin@abc.com&＃39;,
	&＃39;password&＃39; => &＃39;123456&＃39;,
	&＃39;charset&＃39; => &＃39;gbk&＃39;,
	&＃39;mailfrom&＃39; => &＃39;admin@abc.com&＃39;
	);

function sendmail($mail_to, $mail_subject, $mail_message) {

	global $mail, $bfconfig;

	date_default_timezone_set(&＃39;PRC&＃39;);

	$mail_subject = &＃39;=?&＃39;.$mail[&＃39;charset&＃39;].&＃39;?B?&＃39;.base64_encode($mail_subject).&＃39;?=&＃39;;
	$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[&＃39;sitename&＃39;]."<".$mail[&＃39;mailfrom&＃39;].">\r\n";
	$headers .= "Date: ".date("r")."\r\n";
	list($msec, $sec) = explode(" ", microtime());
	$headers .= "Message-ID: <".date("YmdHis", $sec).".".($msec * 1000000).".".$mail[&＃39;mailfrom&＃39;].">\r\n";

	if(!$fp = fsockopen($mail[&＃39;server&＃39;], $mail[&＃39;port&＃39;], $errno, $errstr, 30)) {
		exit("CONNECT - Unable to connect to the SMTP server");
	}

	stream_set_blocking($fp, true);

	$lastmessage = fgets($fp, 512);
	if(substr($lastmessage, 0, 3) != &＃39;220&＃39;) {
		exit("CONNECT - ".$lastmessage);
	}

	fputs($fp, ($mail[&＃39;auth&＃39;] ? &＃39;EHLO&＃39; : &＃39;HELO&＃39;)." 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($lastmessage, 3, 1) != &＃39;-&＃39; || empty($lastmessage)) {
 			break;
 		}
 		$lastmessage = fgets($fp, 512);
	}

	if($mail[&＃39;auth&＃39;]) {
		fputs($fp, "AUTH LOGIN\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 334) {
			exit($lastmessage);
		}

		fputs($fp, base64_encode($mail[&＃39;username&＃39;])."\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 334) {
			exit("AUTH LOGIN - ".$lastmessage);
		}

		fputs($fp, base64_encode($mail[&＃39;password&＃39;])."\r\n");
		$lastmessage = fgets($fp, 512);
		if(substr($lastmessage, 0, 3) != 235) {
			exit("AUTH LOGIN - ".$lastmessage);
		}

		$email_from = $mail[&＃39;mailfrom&＃39;];
	}

	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(&＃39;,&＃39;, $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");

}