I tried to put a HTML hyperlink like this
<a href="test-app://param=123">Click here</a>
in my HTML email template and sent it using java mail library. When I open that email in my gmail, it displays "Click here" but the link is not clickable. It's just <a>Click here</a> (the part "href="test-app://param=123" is removed). It works well when I replace the link in href by the links like www.google.com.
Please help