1. Switch to the editor for editing a page.
  2. Select the text you want to display as a link.
  3. Click the Links button in the editor 
  4. Select link type E-mail
  5. Create e-mail template
    • Enter the e-mail address of the recipient
    • If the recipient is unknown, enter a fake address
    • Fill in subject line
    • Enter text
  6. Confirm with OK
  7. After saving the page, click on the link to open the mail template

Translated with www.DeepL.com/Translator (free version)