blocks|key|917980|text|不是的。|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|917981|取决于你是怎么送他们的。(请提供更多详情)|917982|unstyled|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|H|8|@]|9|@]|A|$]]|$1|D|3|-4|5|E|7|I|8|@]|9|@]|A|$]]]|F|$]]

<ol>
<li>No.</li>
<li>Depends on how you are sending them. (Please provide more details)</li>
</ol>

blocks|key|918009|text|过去有一种方式来查询邮件服务器，如果一个电子邮件地址是有效的。然而，由于垃圾邮件发送者将该设施用于恶意目的，几乎没有邮件服务器将不再支持该方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|918010|您所希望做的就是在电子邮件域上进行DNS查找，以查看域是否有效。|918011|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|$]]

There used to be a way to query a mail server if an email address is valid. However, since spammers used that facility for ill purposes, almost no mail servers will support that method anymore.

All you can hope to do is a DNS lookup on the email domain to see if the domain is valid.

blocks|key|2444256|text|发送电子邮件并请求用户单击某种激活链接是确定电子邮件地址是否有效并被某人使用的最佳方法。如果您只想查看电子邮件是否有效，无论它的寄存器是有效的还是活动的，请使用Regex。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2444257|至于把它们划掉，电子邮件存放在哪里？如果它位于数据库中，只需设置一个激活键和一个标志，说明是否已访问该链接。|2444258|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|$]]

Sending an email and requesting the user click some sort of activation link is the best way to determine if the email address is valid, and being used by someone. If you just want to see if the email is valid whether or not its registerd or active, use a Regex.

As for crossing them out, where are the emails stored? If its in a database, just set an activation key and a flag saying whether the link has been visited or not.

blocks|key|2444294|text|不是|type|ordered-list-item|depth|inlineStyleRanges|entityRanges|data|2444295|你需要邮件列表管理软件。Lyris+Listmanager是一个具有自动弹跳处理并将用户从列表中删除的付费用户。有几个免费的，做同样的事情:+ezmlm，邮递员，大多莫和许多其他。你可能不想仅仅发送所有这些电子邮件，没有一个传销软件来管理它。你可能会从服务器上被列入黑名单。您需要的东西，如取消订阅处理，否则您将不会发送电子邮件太久。|offset|length|2444296|unstyled|entityMap|0|LINK|mutability|MUTABLE|url|http://www.lyris.com/|1|http://www.greatcircle.com/majordomo/^0|0|C|H|0|29|3|1|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@$D|S|E|T|1|U]|$D|V|E|W|1|X]]|A|$]]|$1|F|3|-4|5|G|7|Y|8|@]|9|@]|A|$]]]|H|$I|$5|J|K|L|A|$M|N]]|O|$5|J|K|L|A|$M|P]]]]

<ol>
<li>No</li>
<li>You need mailing list management software. <a href="http://www.lyris.com" rel="nofollow noreferrer">Lyris Listmanager</a> is a paid one that has automatic bounce handling and removes users from your list. There are several free ones that doe the same thing: ezmlm, mailman, <a href="http://www.greatcircle.com/majordomo/" rel="nofollow noreferrer">majordomo </a> and many others. You probably don't want to just send all those emails without a piece of MLM software to manage it. you will probalby get blacklisted fromservers. You need things like unsubscribe handling or you won't be sending emails for long.</li>
</ol>

blocks|key|918122|text|现在，你不知道电子邮件地址是否有效。域就在您所能得到的范围内，您可以对其进行反向查找，以确定其是否有效。但它不会告诉你用户的事。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|918123|您需要的是处理从您的邮件反弹出来，并编写某种类型的脚本，也许更新列表。Linux下有许多工具可用于这类用途，如procmail。我想是有一个窗户用的。|918124|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|$]]

These days, you can't know if the email address is valid. The domain is about as far as you'll get and you can do a reverse lookup on that to see if that is valid. But it won't tell you about the user.

What you need is something to process the bounces from your mail out and write some sort of script to perhaps update the list. There are many tools under Linux for this type of purpose such as procmail. Theres a port of that for windows I think.

blocks|key|989838|text|哈哈。如果你能找到一个方法，答案将是价值数十亿的垃圾邮件发送者。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|989839|这里最好的答案是:不。|989840|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|$]]

Heh. if you could find out a way, the answer would be worth billions to spammers.

The best answer here is: No.

<ol>
<li>is there any way to check if an email is active without sending it an email? (meaning that it does not get returned)</li>
<li>if i have 20,000 emails in my email list, and i do decide to send all of them an email, how can automatically cross out the email address that got returned?</li>
</ol>

how do you check if email address is working?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有没有办法检查一封电子邮件是否处于活动状态而不发送电子邮件？(意味着它不会被返回)如果我的电子邮件列表中有20,000封电子邮件，而且我决定全部发送一封电子邮件，那么如何自动删除被退回的电子邮件地址呢？

问如何检查电子邮件地址是否正常工作？
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