When adding a link to an email address, you need to include the mailto: prefix followed by the email address you want to link to. Here is a example:
mailto:test@example.com
Here is how you will add it in a WordPress Page, Post, module or widget.
Select the text you want to add the link to and press the insert link button (looks like a chain)
This will bring up the insert link popup where you need to add your mailto: link. Click on the apply button to close the insert link popup.
WordPress will automatically detect that the text you are trying to link is an email address and will add the mailto: prefix to the email address.
You can add an email link to any text. If the text is not a valid email address then you will need to add your complete link. Like this:
When setting up an email link, you can also add a subject and/or body to the mailto: HTML code. After clicking on the email, a new email window will open up with those fields already filled in.
To add a subject to the e-mail add ?subject=<subject> to the mailto: tag.
For example, the complete tag would look similar to the example below.
<a href="mailto:test@example.com?subject=Testing out mailto!">First Example</a>
You can also add body text by adding &body=body to the end of the tag, as shown in the example below.
<a href="mailto:test@example.com?subject=Testing out mailto!&body=This is only a test!">Second Example</a>