通过电子邮件发送客户地址簿联系人的最佳实践？
我确信之前已经有人问过这个问题，但与“我如何...”相反，我很好奇当现有客户授权时，对于希望在我们的网站上实现“群发电子邮件”选项的程序员来说，最佳实践是什么（通过 gmail api、yahoo mail api 等）他们自己的联系人列表。
目标
这个想法很简单：用户想要分享有关他/她网站的信息。他们当然可以使用社交媒体或选择从 Gmail、Yahoo、AOL 或 CSV 导入/通过电子邮件发送现有的联系人列表，然后将包含营销信息的电子邮件发送给每个收件人。
我发现的问题
- 我们在一个网站上使用当前的 Google Apps 基本版本（免费）。我认为这将我们限制在一次大约 500 封电子邮件以及每天的阈值。用户不仅可以上传的联系人数量受到限制，而且 ->
- 我担心被列入“黑名单”，可能会一次发送数百/数千封电子邮件。我们的起步预算非常紧张，因此使用 mailchimp 之类的工具进行交付实在太昂贵
主要问题
您今天在许多网站上看到的“通过电子邮件共享”功能的正确方法是什么。这通常会出现在 Facebook 分享按钮、Twitter 推文按钮等旁边。下面提到的“ShareThis”功能似乎是一个可行的选择，但考虑到下面 Blake 的编辑，显然 Google 的 Contact API 在某种程度上就是为此目的。
更新到原始帖子
我不确定这如何被视为垃圾邮件，因为许多大型网站允许通过电子邮件“共享”内容。我正在尝试解决我认为相当基本的问题，但如果其他人有不同的看法，那么欢迎提出其他建议。然而，鉴于我们没有以不道德或非法的方式获取电子邮件地址，因此将此称为垃圾邮件是不准确的，并且我计划允许选择退出/取消订阅选项（并跟踪任何未来的尝试）。
直接来自 Google 通讯录数据 API：
以下是您可以使用联系人数据 API 执行的一些操作：
- 将 Google 通讯录与移动设备上的通讯录同步
- 在社交应用中维护人与人之间的关系
- 让用户能够通过外部应用程序使用电话、电子邮件和即时消息直接与朋友交流
A question I am sure has been asked before but as opposed to 'how do I...', I am curious what the best practice is for programmers looking to implement a 'mass email' option on our website when an existing customer authorizes (via gmail api, yahoo mail api, etc) their own contact list.
Goal
The idea is simple: a user wants to share something about his/her site. They can of course use social media or select to import/email their existing contact list from say Gmail, Yahoo, AOL, or CSV then in turn an email is sent to each recipient with marketing message.
Problems I see
- We use the basic version (free) of Google Apps currenlty for one site. This limits us to I think around 500 emails at a time and a threshold per day. Users not only will be limited in how many contacts they can upload but also ->
- I fear of being 'blacklisted' possibly sending out hundreds/thousands of emails at a time. We are on a pretty tight budge to start so using something like mailchimp for delivery is just too expensive
Primary Question
What is the proper method of the 'share by email' functionality which you see on so many sites today. This is typically noticed next to facebook share buttons, twitter tweet buttons and more. The 'ShareThis' functionality mentioned below seems like a viable option but given the edit by Blake below, clearly Google's Contact API was in some way meant for this.
Update to original post
I am not sure how this is coming across as spam given so many large websites allows for 'sharing' things via email. I am trying to solve what I consider a fairly basic problem but if others see differently then additional suggestions are welcome. Calling this spam, however, is not accurate given we did not obtain the email addresses unethically or illegally and I would plan on allow an opt-out/unsubscribe option (with tracking for any future attempts).
Direct From the Google Contacts Data API:
Here are some of the things you can do with the Contacts Data API:
- Synchronize Google contacts with contacts on a mobile device
- Maintain relationships between people in social applications
- Give users the ability to communicate directly with their friends from external applications using phone, email, and IM
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评论（2）
我不是外行，我认为你不应该这样做。但从我的经验来看，只要：
...法律认为用户已发送电子邮件，但使用您的服务（您的 SMTP 服务器）。
进一步阅读：http://www.webhostingtalk.com/archive/index。 php/t-201195.html
I'm not a laywer, and I think you should NOT do this. But from my experience, as long as:
... the law consider that the user have send the email(s), but using your service (your SMTP server).
Further reading: http://www.webhostingtalk.com/archive/index.php/t-201195.html
如果我绝对需要构建这个，我会选择 Google AppEngine 网站，该网站具有接受传入数据的网络服务请求（最好确保这是安全的，以避免人们使用它作为垃圾邮件的方式！）。您每天可以免费发送 2000 封邮件，超过此限额则为每 1000 封电子邮件 0.10 美元。
另请考虑使用 ShareThis。这提供了多种共享内容（以及社交媒体）的方式，并允许用户使用他/她的 Google + Yahoo 地址簿。
If I absolutely needed to build this, I'd go with a Google AppEngine site, with a web service that accepts incoming requests (better make sure this is secure to avoid people using this as a way to spam!). You can send 2000 messages/day for free, and above that it's $0.10/ 1000 Emails.
Also consider using ShareThis. This provides several ways to share content (also social media), and allows a user to user his/her Google + Yahoo address books.