Those bulletproof buttons are also *tracking*-proof, though (here's the fix)

@Sanford Whiteman​, Marketo seems to have changed something - they probably improved their  (X)HTML parser and unintentionally broke this workaround.

Now, any buttons attempting to use this workaround simply dont display, upon delivery.

Is there an alternative solution?

What is the rendered HTML now?  Truly improving the XHTML parser (not just breaking it a different way) would still output the button, just with untracked links. (<a:something> is not an <a>, but it is a legitimate tag.)

You can send me a direct email (you have my addy) and I'll look at it.

Hobie, I tested the code from the post and still works for me -- <a:roundrect> is still successfully treated as an <a> and its href is tracked.

Weird, it's working for me now - it must've been a temporary issue of some sort. Thanks!

I'd kind of moved away from using these, but this is definitely going into my everyday file of VML hacks. Fabulous discovery, thanks for sharing.

Marketo Nation should just be called Sanford Nation.

Thanks, Sanford for yet another solution for the EXACT problem I was looking to solve. Now if only I knew/discovered this a few months earlier, I wouldn't have a few campaigns with completely thrown off click results.

Thanks for sharing this! It somewhat relates to the question I just recently posted (VML-Based Email Button Changes Color when Clicked)

I was actually going to point you here -- glad you found it.