建立电子通讯发送系统/避免垃圾邮件
首先，我不是垃圾邮件发送者:) 我是一名合法的开发人员，为一家公司工作，该公司目前正在为我们的客户开发电子通讯发送系统。
现在，我们为其中一个客户发送了 8 万封请求电子邮件，但我们因垃圾邮件而被阻止，尽管我们的客户过去曾使用 ymlp.com 将类似的活动发送到同一邮件列表没问题。
我偶然发现了一些信息，例如：
http://www.codinghorror.com/blog/2010/04/so-youd-like-to-send-some-email-through-code.html
所以我已经设置了 SPF 记录，我也在整理DKIM记录。
但我的问题是...... ymlp.com 和其他新闻通讯发送系统（例如活动监视器和邮件黑猩猩）如何在不让用户设置这些 DNS 记录的情况下克服所有垃圾邮件阻塞？
除了我为我们的系统创建的记录之外，我们使用 ymlp.com 的客户没有其他 SPF 记录设置。
我注意到垃圾邮件发送者这个词在诸如此类的主题中被过于随意地使用，所以我必须再次重申，我并不是在向人们发送垃圾邮件，这是对于正在开发的真正系统的一个真正的问题。
编辑： - 我们似乎通过了所有 SPF / DKIM / DomainKeys 检查（brandonchecketts.com/emailtest.php），但仍然因垃圾邮件而被拒绝。目前，我们发送的营销活动的阅读率约为 2%，远低于我们预期的 7-8%
Firstly, I AM NOT A SPAMMER :) I am a legitimate developer, working for a company who is currently developing an enewsletter sending system for our clients.
Now, we sent out a campaign for one of our clients to 80k solicited emails, and we got a huge amount blocked due to spam, even though our client has used ymlp.com to send similar campaigns to the same mailing list in the past with no problems.
I have stumbled across a few nuggets of information such as:
How to send 100,000 emails weekly?
http://www.codinghorror.com/blog/2010/04/so-youd-like-to-send-some-email-through-code.html
So I have got the SPF record setup, and I am in the process of sorting out DKIM records too.
But my question is this... How can ymlp.com and other newsletter sending systems such as campaign monitor and mail chimp get by all the spam blockage, without getting their users to setup these DNS records?
Our client who uses ymlp.com has no other SPF records setup other than the one I have created for our system.
I have noticed the word spammer being thrown around way too freely in topics such as this, so again I must reiterate, I am not looking to spam people, this is a genuine question for a genuine system in development.
Edit: - We seem to pass all SPF / DKIM / DomainKeys checks ( brandonchecketts.com/emailtest.php ), yet still get rejected for spam by a fairly hefty chunk. Our read rate on campaigns sent is about 2% at the mo, which is way below the 7-8% we expect
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您是否检查过反向 DNS？它确实有助于交付能力。另外，请务必监控您的 IP 的声誉。
希望有帮助！
Have you checked out reverse DNS? It does help on the deliverability front. Also, be sure to monitor the reputation of your IPs.
Hope that helps!