Link to an Email Address
If you'd like to create a link which will automatically open someone's email client and populate the "To" field, set the link URL to mailto:youremail@example.com, replacing youremail@example.com with the email address you'd like to send to.
Mailto Links
Use this approach when prompted to assign a link to an image, button, or wherever you see a blank link field.
If you are working within a text block, and want to hyperlink certain words or phrases, highlight the email address or phrase you'd like to turn into a link.
Once the correct text is highlighted, click the Link button.
Text Block Email Links
Set the link type to "E-mail" and enter an email in the email field. You can also add a default subject line and message body by filling in the message subject and message body fields.
Click OK and a link will be added. Because you changed the link type to "E-mail," there is no need to use the "mailto:" prefix. When recipients click on such a link, their email client will automatically open and generate a new email window. The "To" field will automatically populate with the email address you specified and the message subject and body will also populate accordingly.