Linking to an email address that then opens the clients default email editor is a nice touch to any web site.
WordPress How To :
1 — Highlight the text you want to make the link
2 — Click on the ‘Link’ Button
3 — In the URL box add the email address you want to link to after the script “mailto:” The mailto bit is how we open the default email editor so don’t skip this bit , this will also place the email address into the “to” box.