I've created an HTML email which has a link back to my website. It works fine in every mail client that I've tested except Yahoo mail. Yahoo mail adds rel="nofollow" and deletes the href link.
<a style="text-decoration:none;font-size:16px;color:#0000CC;" href="www.xyz.com" target="_blank">Visit Us</a>
is replaced with
<a rel="nofollow" style="text-decoration:none;font-size:16px;color:#0000CC;">Visit Us</a>
Consequently, there's no link in Yahoo mail.
I have not been to find any documentation on how to prevent this from happening. Any inputs would be appreciated.