blocks|key|1506307|text|首先，使用PHP附带的mail()函数不是最佳解决方案。它很容易被标记为垃圾邮件，您需要设置标题以确保正确发送HTML电子邮件。至于代码片段是否能正常工作，我怀疑如果没有specifying+extra+headers，您将无法在其中正确地获得HTML代码|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1506308|我建议你看看SwiftMailer，它支持超文本标记语言，支持不同的mime类型和SMTP身份验证(它不太可能将你的邮件标记为垃圾邮件)。|1506309|entityMap|0|LINK|mutability|MUTABLE|url|http://sg2.php.net/manual/en/function.mail.php|1|http://swiftmailer.org/^0|2D|O|0|0|6|B|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

First off, using the mail() function that comes with PHP is not an optimal solution. It is easily marked as spammed, and you need to set up header to ensure that you are sending HTML emails correctly. As for whether the code snippet will work, it would, but I doubt you will get HTML code inside it correctly without <a href="http://sg2.php.net/manual/en/function.mail.php" rel="noreferrer">specifying extra headers</a> 

I'll suggest you take a look at <a href="http://swiftmailer.org/" rel="noreferrer">SwiftMailer</a>, which has HTML support, support for different mime types and SMTP authentication (which is less likely to mark your mail as spam).

blocks|key|1291758|text|这是建议，而不是答案:你最好使用专用的邮件列表软件。mailman是一个经常使用的例子，但是像mlmmj这样简单的东西就足够了。发送大量邮件实际上是一项比实际看起来更困难的任务。您不仅必须发送邮件，还必须跟踪“死”地址，以避免您的邮件，更糟糕的是，您的邮件服务器，被标记为垃圾邮件。出于同样的原因，你必须处理那些取消订阅的人。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1291759|您可以自己实现这些功能，但尤其是反弹处理是一项困难且毫无回报的工作。使用邮件列表管理器将使事情变得容易得多。|1291760|至于如何让雅虎喜欢你的邮件，那就完全是另一回事了。尽管有很多缺点，但他们似乎非常看重SPF和DomainKey。您可能必须实现它们，这将需要您的邮件服务器管理员的合作。|1291761|entityMap|0|LINK|mutability|MUTABLE|url|http://www.gnu.org/software/mailman/index.html|1|http://mlmmj.org/|2|http://openspf.org/^0|Q|7|0|1B|5|1|0|0|16|3|2|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]|$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@$A|12|B|13|1|14]]|C|$]]|$1|H|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]|P|$5|K|L|M|C|$N|Q]]|R|$5|K|L|M|C|$N|S]]]]

This is advice, not an answer: You are much, much better off using dedicated mailing list software. <a href="http://www.gnu.org/software/mailman/index.html" rel="noreferrer">mailman</a> is an oft-used example, but something as simple as <a href="http://mlmmj.org" rel="noreferrer">mlmmj</a> may suffice. Sending mass mails is actually a more difficult task than it actually appears to be. Not only do you have to send the mails, you also have to keep track of "dead" addresses to avoid your mail, or worse, your mailserver, being marked as spam.
You have to handle people unsubscribing for much the same reason.

You can implement these things yourself, but particularly bounce handling is difficult and unrewarding work. Using a mailing list manager will make things a lot easier.

As for how to make your mail palatable for yahoo, that is another matter entirely. For all its faults, they seem to put great stock in <a href="http://openspf.org" rel="noreferrer">SPF</a> and DomainKey. You probably will have to implement them, which will require co-operation from your mail server administrator.

blocks|key|1291788|text|您可以考虑使用CRON来执行这种操作。一次发送大量邮件肯定不好，它可能会被检测为垃圾邮件、ddos、服务器崩溃等。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1291789|所以CRON可能是一个很好的解决方案，一次发送100封邮件，然后等待几分钟，然后再发送100封，等等。|1291790|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

You may consider using CRON for that kind of operation. Sending mass mail at once is certainly not good, it may be detected as spam, ddos, crash your server etc. 

So CRON could be a great solution, send 100 mails at once, then wait a few minutes, next 100, etc.

blocks|key|1291813|text|另外，我们还可以看看PHPmailer类。PHPMailer|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1291814|entityMap|0|LINK|mutability|MUTABLE|url|http://sourceforge.net/projects/phpmailer/^0|L|9|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Also have a look at the PHPmailer class. <a href="http://sourceforge.net/projects/phpmailer/" rel="nofollow noreferrer">PHPMailer</a>

blocks|key|1506422|text|你为什么不使用phplist呢？它也是建立在PHP+Mailer之上的，很多行业领导者都在使用它。我自己也用它给我的客户发过几次群发邮件。phplist的好处是你可以在一个域名级别加上一个时间限制级别来限制你的消息。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1506423|我们还使用了几个内部捕获系统，将我们的用户群推送到邮件列表，然后让一个cron条目每天触发一个给定的邮件。可能性是无穷无尽的，这就是开源的可怕之处！|1506424|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Phplist^0|7|7|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

Why don't you rather use <a href="http://en.wikipedia.org/wiki/Phplist" rel="nofollow noreferrer">phplist</a>? It's also built on top of PHP Mailer and a lot of industry leaders are using it. I've used it myself a couple of times to send out bulk mails to my clients. The nice thing about phplist is that you can throttle your messages on a domain level plus a time limit level. 

What we've also done with a couple of internal capture systems we've got was to push our user base to the mailling list and then have a cron entry triggering a given mail each day. The possibilities are endless, that's the awesome thing about open source!

blocks|key|1291883|text|还有Pear包：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1291884|http://pear.php.net/package/Mail_Mime+http://pear.php.net/package/Mail+http://pear.php.net/package/Mail_Queue|offset|length|1291885|哭吧。|1291886|注:不要使用mail()来发送那5000封电子邮件。除了其他人所说的之外，它的效率非常低，因为mail()为每个电子邮件集创建了一个单独的套接字，即使是到相同的MTA。|1291887|entityMap|0|LINK|mutability|MUTABLE|url|http://pear.php.net/package/Mail_Mime|1|http://pear.php.net/package/Mail|2|http://pear.php.net/package/Mail_Queue^0|0|0|11|0|12|W|1|1Z|12|2|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]|$D|10|E|11|1|12]|$D|13|E|14|1|15]]|A|$]]|$1|F|3|G|5|6|7|16|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|17|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]|T|$5|M|N|O|A|$P|U]]]]

Also the Pear packages:

<a href="http://pear.php.net/package/Mail_Mime" rel="nofollow noreferrer">http://pear.php.net/package/Mail_Mime</a>
<a href="http://pear.php.net/package/Mail" rel="nofollow noreferrer">http://pear.php.net/package/Mail</a>
<a href="http://pear.php.net/package/Mail_Queue" rel="nofollow noreferrer">http://pear.php.net/package/Mail_Queue</a>

sob. 

PS: DO NOT use mail() to send those 5000 emails. In addition to what everyone else said, it is extremely inefficient since mail() creates a separate socket per email set, even to the same MTA.

blocks|key|1506500|text|你可以为它使用swiftmailer。通过使用批处理。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1506501|<?php
++++$message+=+Swift_Message::newInstance()
++++++->setSubject('Let\'s+get+together+today.')
++++++->setFrom(array('myfrom@domain.com'+=>+'From+Me'))
++++++->setBody('Here+is+the+message+itself')
++++++->addPart('Test+message+being+sent!!',+'text/html');

++++$data+=+mysql_query('SELECT+first,+last,+email+FROM+users+WHERE+is_active=1')+or+die(mysql_error());
++++while($row+=+mysql_fetch_assoc($data))
++++{
+++++++$message->addTo($row['email'],+$row['first']+.+'+'+.+$row['last']);
++++}

++++$message->batchSend();
?>|code-block|syntax|javascript|1506502|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use swiftmailer for it. By using batch process.

<pre><code>&lt;?php
 $message = Swift_Message::newInstance()
 -&gt;setSubject('Let\'s get together today.')
 -&gt;setFrom(array('myfrom@domain.com' =&gt; 'From Me'))
 -&gt;setBody('Here is the message itself')
 -&gt;addPart('&lt;b&gt;Test message being sent!!&lt;/b&gt;', 'text/html');

 $data = mysql_query('SELECT first, last, email FROM users WHERE is_active=1') or die(mysql_error());
 while($row = mysql_fetch_assoc($data))
 {
 $message-&gt;addTo($row['email'], $row['first'] . ' ' . $row['last']);
 }

 $message-&gt;batchSend();
?&gt;
</code></pre>

blocks|key|1291979|text|除了使用软件之外，还有更多的事情要做。如果你能创建一个间歇性发送邮件的批量邮件程序。假设你要发送5000个收件人，创建一个循环，每次发送38个列表，然后暂停10秒。在过去的几周里，我有过每天手动发送500的实际经验，到目前为止，我得到了很好的结果。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1291980|另一个考虑因素是你电子邮件的内容。如今，这是一个标准，你需要把你的实际办公地址和“退订”的选择退出。这些都是大多数收件人电子邮件服务器正在检查的因素。如果你没有这些，他们会将你归类为垃圾邮件发送者。|1291981|Mailchimp是我最好的建议，如果你想要一个付费服务提供商发送给你的电子邮件订阅者，而不是发送未经请求或冷淡的电子邮件营销。|1291982|希望能有所帮助。|1291983|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

There is more into it aside from using a software. If you could create a bulk emailer program that sends intermittently. Say if you will send 5,000 recipients, create a loop that would send 38 lists per sending then pause for 10 seconds. I have an actual experience sending 500 manually per days for the past weeks and so far i have good results. 

Another consideration are the content of your email. Nowadays it is a standard that you need to put your physical office address and the "unsubscribe" opt-out. These are factors that majority of recipient emails servers are checking. If you don't have these they will classify you as spammer. 

Mailchimp is my best recommendation to use if you want a paid service provider in sending to your email subscriber NOT sending unsolicited or cold email marketing. 

Hope it helps.

I am currently writing a music blog. The administrator posts a new article every 2-3 days. Once the administrator posts an article, a mass email will be sent to around 5000 subscribers immediately. 

What is the best way to implement the mass mail feature?

Does the following function work?

<pre><code>function massmail() 
{
 $content = '...';
 foreach ($recipients as $r) {
 $_content = $content . '&lt;img src="http://xxx/trackOpenRate.php?id='.$r.'"&gt;';
 mail($r, 'subject', $_content);
 }
}
</code></pre>

Another question: If all 5000 subscribers are using Yahoo Mail, will Yahoo treat it as a DDOS attack and block the IP address of my SMTP server?

Sending mass email using PHP

我目前正在写一个音乐博客。管理员每2-3天发布一篇新文章。一旦管理员发布了一篇文章，一封群发电子邮件将立即发送给大约5000名订阅者。实现群发邮件功能的最佳方式是什么？下面的函数可以工作吗？function massmail() {  $content = '...';  foreach ($recipients as...

问使用PHP发送群发电子邮件
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