如何通过PHP检查我的脚本是否连接到SMTP服务器
答
如果你想知道你是否可以从任何地方访问SMTP服务器运行PHP,那么你只需要连接到它在适当的端口(默认25),并看到如果你在结果中找回“220”代码。
$f = fsockopen('smtp host', 25) ;
if ($f !== false) {
$res = fread($f, 1024) ;
if (strlen($res) > 0 && strpos($res, '220') === 0) {
echo "Success!" ;
}
else {
echo "Error: " . $res ;
}
}
fclose($f) ;
答
由于这是最有可能与您的其他问题:Configure mail server to work with PHP,我会在这里把答案过于:
您正在使用PEAR邮件包。 send()
方法在成功时返回TRUE,否则返回PEAR_Error
对象,其中将包含失败的详细信息。很可能你会想要$ PEAR_Error :: message。全部细节在这里:Configure mail server to work with PHP
答
它可能是由于你的SMTP端口是不允许的防火墙,以便尝试这个PHP脚本来检查开放的端口,它是具有最大热门港口检查:
<?php
$ports[] = array('host'=>'interspire.smtp.com','number'=>25);
$ports[] = array('host'=>'interspire.smtp.com','number'=>2525);
$ports[] = array('host'=>'interspire.smtp.com','number'=>25025);
$ports[] = array('host'=>'helpme.interspire.smtp.com','number'=>80);
$ports[] = array('host'=>'google.com','number'=>80);
$ports[] = array('host'=>'smtp.gmail.com','number'=>587);
$ports[] = array('host'=>'smtp.gmail.com','number'=>465);
$ports[] = array('host'=>'pop.gmail.com','number'=>995);
$ports[] = array('host'=>'imap.gmail.com','number'=>993);
$ports[] = array('host'=>'ftp.mozilla.org','number'=>21);
$ports[] = array('host'=>'smtp2go.com','number'=>8025);
$ports[] = array('host'=>'relay.dnsexit.com','number'=>25);
$ports[] = array('host'=>'relay.dnsexit.com','number'=>26);
$ports[] = array('host'=>'relay.dnsexit.com','number'=>940);
$ports[] = array('host'=>'relay.dnsexit.com','number'=>8001);
$ports[] = array('host'=>'relay.dnsexit.com','number'=>2525);
$ports[] = array('host'=>'relay.dnsexit.com','number'=>80);
$ports[] = array('host'=>'mail.authsmtp.com','number'=>23);
$ports[] = array('host'=>'mail.authsmtp.com','number'=>25);
$ports[] = array('host'=>'mail.authsmtp.com','number'=>26);
$ports[] = array('host'=>'mail.authsmtp.com','number'=>2525);
foreach ($ports as $port)
{
//$connection = @fsockopen($port['host'], $port['number']);
$connection = @fsockopen($port['host'], $port['number'], $errno, $errstr, 5); // 5 second timeout for each port.
if (is_resource($connection))
{
echo '<h2>' . $port['host'] . ':' . $port['number'] . ' ' . '(' . getservbyport($port, 'tcp') . ') is open.</h2>' . "\n";
fclose($connection);
}
else
{
echo '<h2>' . $port['host'] . ':' . $port['number'] . ' is not responding.</h2>' . "\n";
}
}
?>
来源自:https://www.interspire.com/support/kb/getattachment.php?data=MTA2OHxwb3J0Y2hlY2sucGhw