使用免费电子邮件发送的SMS消息的限制 - > SMS网关 [英] Limitations on SMS messages sent using free email->SMS gateways

问题描述

美国的许多小区（移动）电话提供商都有一个用于短信的电子邮件网关，允许任何人发送一个电子邮件，然后再发送短信。例如，要向具有Verizon手机的用户发送短信，您可以发送电子邮件到[e-mail]。

Many cell (mobile) phone providers in the USA have an email gateway for SMS that allows anyone to send an email that will in turn send a text message. For example, to send a text-message to a user who has a Verizon phone you can send an email to [e-mail].

但...如何可靠这些网关是什么，可以发送的消息速率有什么限制？在某些时候，供应商是否阻止或限制服务？

But... how reliable are these gateways, and what limitations are there on the rate of messages that can be sent? At some point do the providers block or throttle service?

有没有人在使用这种类型的电子邮件/短信网关进行大容量或高可靠性应用程序？

Is there anyone out there who is using this type of email/SMS gateway for either a high volume or high reliability application?

推荐答案

给予一些条件（见下文），电子邮件至SMS网关通常是可靠的。您是否应该使用电子邮件至SMS网关或实际的第三方提供商取决于应用程序。 如果您需要对消息的格式化，收集回复等进行大量控制，请与第三方提供商一起进行。如果这是一个简单的通知，您正在发送您的用户，请使用电子邮件至短信。

The email-to-SMS gateways are generally reliable, given a few conditions (read below). Whether you should use an email-to-SMS gateway or an actual third-party provider depends on the application. If you're going to need a lot of control over the formatting of the messages, collecting replies, etc., then go with a third-party provider. If it's a simple notification you are sending your users, go with email-to-SMS.

如果您从同一个电子邮件地址发送太多邮件，消息将开始备份。例如，我向大约3,000位AT& T无线接收者发送了一个消息，有些人在3天后收到消息。但是通常，发送10-30分钟不会造成任何问题。

If you send too many messages from the same email address, the messages will start backing up. For instance, I sent a message out to about 3,000 AT&T Wireless recipients, and some received the messages up to 3 days later. But typically, sending 10-30/minute won't cause any problems.

我为我建立的iPhone应用程序使用电子邮件到短信网关。它每分钟可能发送几封邮件到几乎所有的美国运营商，很少遇到问题。

I use email-to-SMS gateways for an iPhone application that I built. It sends probably 10 messages per minute to almost all U.S. carriers, and it rarely experiences problems.

我遇到三个主要问题，我遇到电子邮件到短信网关：

There are three main issues that I run into with the email-to-SMS gateway:

• 您无法控制消息的样子。每个运营商都不同。对于一些，收件人将显示电子邮件地址，其他人将显示名称。有些则包含电子邮件的主题行，有些则不包含。


• 您无法控制邮件的数量。幸运的是，一般人群通常读取发送给他们的所有短信，无论发送人的号码如何。


• 如果没有服务器端脚本来管理收到的电子邮件，则无法控制回复。大多数运营商，电话中的回复可以返回发件人的电子邮件地址。

• You don't have control over what the message looks like. Every carrier is different. For some, the recipient will show the email address and others will show the name. Some include the subject line of the email, some don't.
• You can't control what number the messages come from. Fortunately, the general population typically reads all text messages sent to them regardless of the sender's number.
• You can't control the replies without a server-side script to manage incoming email. For most carriers, a reply from the phone goes back to the sender's email address.

这篇关于使用免费电子邮件发送的SMS消息的限制 - > SMS网关的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！