问HN：如何阻止垃圾邮件？
对于我的SaaS，有很多假账户被创建，这些账户似乎是来自 @mail.ru、@bk.ru、@list.ru 等域名的自动化机器人。<p>当然，我可以设置一个手动的黑名单，但我想知道你们是如何处理这个问题的？<p>是否有现成的服务或者至少是一个可以使用的良好黑名单？<p>谢谢！<p>[为清晰起见进行了编辑]
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For my SaaS, a lot of fake accounts are created which seem to be automated bots from @mail.ru @bk.ru @list.ru etc domains.<p>Now of course I could set up a manual block list or so, but I was wondering how you are doing it?<p>Is there an existing service or at least a good block list that I can already use?<p>Thanks!<p>[Edited for clarity]