开一个mailchimp?

河小马

一直以来都认为 mailchimp 有很多的IP。。可是今天一看才发现。。我想错了。。。

1. http://mailchimp.com/about/ips/

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这里有 mailchimp 的全部 outbound 的IP。。。。仔细一看。。原来才这么点IP。。比我的还少不少。。

1 w' Z% E, E  T" u2 Y这些IP 主要来自于direct ARIN assignment, softlayer and internap...
* O- [7 Z7 S4 H
9 Y# O; e) }5 G由此可以看出做一些这种ESP 的成本并没有多少。。。难的是整个系统的架构

河小马

再看下mailchimp 的 about us

1. MailChimp is an email service provider that's been around since 2001. We've got over 4 million customers from all over the world—small business, Fortune 500s, nonprofits, schools, musicians, etc.—who use MailChimp to send more than 5 billion emails every month. Our servers deliver more than 275 million newsletters every day, so we work very hard to keep abuse out of our system and maintain high overall deliverability. Nobody's perfect, but we like to think we try the hardest.

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就这些服务器，每天竟然能够delivery 275 million per day

, A$ A6 w- n4 L我擦。。这个利润实在太大了。。。

alitraffic

那你也弄个ESP吧