前言
邮件提醒其实有两个作用，其一是为了阅读博客的人评论之后可以第一时间获取评论的回复，因为肯定不会有人一直待在一个网页还不时进行刷新；其二就是因为我们的网站收到了评论有了邮件提醒就可以第一时间进行回复了，不必需要总是查看后台-评论，因为关闭的审核有新评论后台并没有通知的
搭建过程
我使用的是阿里云的邮件服务，初始每天的额度是2000，其实200封免费，对于我来说这样的免费额度已经算是相当够用了，食用方法其实也非常简单
添加域名
在发信域名选项中点击右上角的新建域名
验证域名
之后点击配置就可以看到我们需要添加3条解析规则，在你的域名购买地进行添加域名解析，其中所有权验证在验证完成之后可以删除，其它的不可删除
填写好之后点击验证，其中可能需要等待5-10分钟等待解析生效
创建发信地址
填写自己想要使用的发信域名，发送邮箱地址，其中回信地址需要填写你自己的邮箱（之后会发送验证邮件）
设置SMTP密码
添加完成之后右侧可以设置SMTP密码，注意密码要求，不能使用符号，数字、大写字母，小写字母都至少要有2个
配置WordPress
我开始使用的是SMTP Mailer，发现评论者可以收到，但是我收不到不知道为什么，现在使用的是WP Mail SMTP，在后台-插件-安装插件中搜索并安装
配置WP Mail SMTP
在阿里云的发信地址那里可以看到一些需要的配置，SMTP服务地址和端口号
之后就可以在WP Mail SMTP里面进行设置了，首先选择其它SMTP（最后一个），之后参考我这里的进行配置
最后的最后，这里别忘了取消打勾，要不然会有捆绑插件…别问我是怎么知道的，真没想到这里竟然会有捆绑软件的套路，整的我都不太想用它了
好了，现在就可以测试一下了，看看可不可以正常收到邮件
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