number of maximum tokens in Email Template

I agree w/ Phillip, add one more vote for: "haven't run into any issue yet".

To test something like this out, you might want to setup a program folder and fill it full of tokens (maybe just something like {{my.testNumber1}}, {{my.testNumber2}} ...) and then drag in any ol' module in your email (something simple like a paragraph should do) and fill it up with token-after-token until you either hit the number you're looking for or something way more than you think you'll need. In your program you'd of course want to assign a value to the tokens, maybe something simple like {{my.testNumber1}} = 1 and {{my.testNumber2}} = 2 so that you could see the number counting up if it was working (1,2,3,4,5...500).