Have you ever had a need for a link to open up a new email, ready for the recipient to use?
You can create a mailto link this way...
1) Highlight the text you want to link and press the insert/edit link button:
2) Now add the mailto address in the URL (here is a test URL that you can change to suit yourself: mailto:firstname.lastname@example.org?Subject=Hello%20again)
3) This will then create a link which will open up a lovely email new!