To dream about email, is interpreted as suggestion that you need to reach out to people who may not necessarily always physically be around. Email can be interpreted as direct external stimuli. It means working too much with computer. Have you been spending too much time in front of the computer? Then email has carried over into your dreams.
Dream dictionary: xx email dream meanings
If you receive an email while dreaming, it shows that you are waiting for some kind of important news or messages that must be given to you in very short period of time. If you were the one who sent an email, you wish to forward some message to others.
To dream that you are using the internet means that you are willing to find some answers to your questions. The internet is also a tool to communicate with people all around the world. If you are sending messages through the internet, then it means that you feel the lack of communication. To get more detailed dream interpretation, please also see the meaning of email.