Just wanted to chime in and share that I’m now using this trick to preview HTML emails going out from my Doc, and it’s awesome! Now I don’t have to send an email every time I tweak my email template to see if I got it right!
Note that I did have to substitute some XML code for things as follows (XML doesn’t quite like lone ampersands it seems):
...
thisRow.[Email Update Body]
.Substitute(" ", " ")
.Substitute("&","&")
...