Highlight the text you want to be clickable and then click the 'link' icon in the second row to the far right in the compose toolbar. Select the link type, such as a URL (which is any web site address) or email address.
If you select E-mail address, you can type a subject line and/or text to appear in the body of the email that they will send to you. When your eCard recipients click on this link, they will see your pre-formatted email message but their email program will allow them to change the subject and body of the email.
How do I create an eCard?
How do I search for an eCard design?
How do I add an eCard design as a favorite?
When I compose an eCard, what options do I have for formatting the text of my message?
Can I insert text from another program into my eCard?
Can I use HTML code when composing my eCard message?
How many people can I send my eCard to?
How do I address my eCard?
How do I schedule my eCard to be sent on a future date?
How do I set a default custom eCard style for all eCards I create?