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

In the past it was common to use tables for page layout, and many people who create pages are still more comfortable doing it this way.

As James says, best practice is to use CSS positioning facilities for page layout except when it actually is tabular data; but personally I often find it hard to get the effects I want with CSS.