By default, the email associated with your nick is able to be seen by anyone who runs the INFO command on your nick. For example, run the following command in the Server window (when using the built-in IRC client in Wurm) with your nick in place of "yournickhere":
<code>/msg NickServ INFO yournickhere all</code>
If you have not hidden your associated email then your email will be displayed. To hide your email from being seen by others run the following command: