SMTP 服务器每天发送数千封邮件通知
我正在构建一个 Web 应用程序，该应用程序有可能每天发送数千封电子邮件（其中大部分是系统通知电子邮件）
我正在使用专用服务器作为启动，但我正在考虑使用诸如smtp 服务器处理 sendmail 进程。不仅仅是为了减少服务器负载，最重要的是我不希望我的服务器 IP 被列入任何垃圾邮件列表（例如 spamhaus.org）的黑名单，
您能建议我针对这种情况最好的处理方法是什么吗？ 到目前为止，我拥有的选项是：
- 使用 goggle app smtp 和 Premier 帐户。这是我更喜欢的选项，但我不确定谷歌是否有这样的限制，不适合我的情况
- 使用商业 smtp 服务器（如果这是最好的选择，你能为我推荐任何可靠的服务吗？）
I'm in the process building a web application which is has a potential to send thousands of email on daily basis (most of it is system notification emails)
I'm using dedicated server for start but I'm thinking to use such as a smtp server to handle the sendmail process. Not just to reduce the server load but the most important thing is I don't wan't my server IP blacklisted in any spam list such as spamhaus.org
Can you suggest me what the best deal for this situation?
Options that I have so far are :
- Using goggle app smtp with premier account. This is the option I prefered but I'm not sure whether google has such limitation that does not fit my situation
- Using commercial smtp server (If this the best option, can you suggest me any reliable service for this?)
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我会推荐一个商业解决方案，因为这样你就可以退出维护，如果你确实被列入黑名单，你可以招募他们的支持团队来处理它。
我使用过营销活动监视器，并取得了非常好的成功。费率具有可比性，并且界面非常易于使用。这更像是一个小型企业解决方案。
我还使用过 Responsys 和 Yesmail。这些是更多的企业解决方案，对于您所寻找的内容可能有点过大了。
I would recommend a commercial solution because then your taken out of the maintenance and if you do get blacklisted you can enlist their support team to take care of it.
I've used campaign monitor and had very good success with them. The rates are comparable and the interface is very easy to use. This is more of a small business solution.
I've also used Responsys and Yesmail. These are more enterprise solutions and might be a little overkill for what your looking for.
关于黑名单：如果你很谨慎，不做傻事，比如在一个新的IP地址上发送5000封邮件，那么你就不会被列入黑名单。对于意外列入黑名单的情况，您应该有一个备用 IP 地址或备用服务器。
对于现代硬件来说，几千封邮件并不是一个明显的负载。想一想：如果您每天发送 5000 封邮件，这意味着每 17 秒仅发送一封邮件。
也就是说，我根本不反对使用外部邮件服务来发送通知，我只是没有这样的经验。
Regarding black lists: if you are cautious, and do not do silly things, like sending 5000 mails once on a fresh IP address, than you will not be blacklisted. For the case of accidental blacklisting you should have a reserve IP address or a reserve server.
A few thousand mails is not a noticeable load on modern hardware. Just think about it: if you send 5000 mails per day that means only a single mail per 17 seconds.
That said I am not against using an external mail service for sending notifications at all, I just have no such experience.