What version of html would yo recommend for mail content to get best mail-client compatibility?
HTML 3.2
HTML 4.01 transitional
HTML 4.01 strict
XHTML 1.0
If you are coding HTML emails, you want to code them like it is 1999.
This means using tables for layout, inline styles and limited css.
Here is a nice graphic showing what works and in what browsers: http://www.campaignmonitor.com/css/
Some general rules that I follow:
tags or