Another note - I haven't been able to get any tokens with dashes to work. Underscores and spaces both work, but dashes cause the formatting error message to pop up.
We used to use external URLs this way too. I put in a support ticket to Marketo around the time it stopped working, and their response as to why it was no longer supported was:"Tie...
Tokenizing is great, but creating plain-text versions of your tokens becomes a nightmare if you have a variable number of paragraphs in the rich-text version. It would be great to ...