Most customers use Email To SMS to inform somebody of something. But what if you are asking a question and are expecting an answer? You can always use Message Insight to see the incoming messages. However, wouldn't it be more practical to receive them straight into your inbox?
To do this, open your Email To SMS application and
1) Go to Settings
2) Go to Advanced
3) Scroll all the way down and set Incoming Messages to "yes"
Should you want to receive the reply on multiple E-mail adresses, you can specify them there also.
Now everytime somebody sends you a reply, you will receive it in your inbox, allowing you to respond more quickly.