using HTML based emails greatly increases the possibility of the email being considered junk or spam.
you can certainly change it to an HTML clickable link if you like, but be aware of the possible consequences if you do.
Ahh - good point. In that case, the text in the message should say to COPY the URL shown below into your browser, rather than to click on the link, shouldn't it? If it's a text message, there is no opportunity to click on such text URLs (in general, at least).
While I have your attention though, I should only have to make these edits to the validation.php file that I mentioned above, right? For some reason, I'm not seeing these changes take effect.