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

I'd highly recommend paying a visit to the Email Standards Project website. It lists almost every major email client (both standalone and web-based) on the market and outlines how much HTML support is built into each one.

Also check out Campaign Monitor's email design guidelines for some practical guides for proper HTML email building -- including, sadly yes, "use tables."