It’s important to understand that Email to SMS is a library, not an application, which means that it doesn’t do anything on its own. Instead, it works as a third-party component for your existing application or website, allowing you to send text messages from your code. Sending messages with Email to SMS is free (although recipients may be charged by their carrier as with normal text messages), but be aware of a few drawbacks compared to paid services like Clickatell, Tropo, and Twilio. Messages you send will come from your email address, not your phone number. You may also be limited to less than 160 characters, depending on the carrier. Finally, due to the nature of email-to-SMS (messages are sent as emails to the carrier’s gateway, which resends them as text messages) this method can be somewhat unreliable. If you are looking to send text messages to yourself or to a few people, this is certainly a good option to .