Is it true that newsletters in HTML should have a “table-based” layouts?

Question

I read somewhere that when creating a HTML email, you should use the table-based layout. You should not care about creating tableless css based layout. Is that true? I have

Answer 1

There's certainly no standard that mandates it, and in fact, best practices dictate that tables should not be used for layout (except in the case of laying out tabular data).

There is an argument to be made for using tables in presentation, as there's no guarantee the plethora of desktop and web-based email clients will render CSS-based presentation properly... However, I wouldn't say that's an argument in-and-of itself.