For example:
Do not use that:
<style>.bg_white { background-color: white; }</style>
<table class=”bg_white”> etc.

Use this:
<table bgcolor=”white”> etc.

For some advanced email clients style rules can be inserted into tag options

For example:
<table bgcolor=”white” style=”background: url(some picture);”> etc.

Converting all divs into tables and insert the css.

Works in Gmail, Hotmail, Outlook, Opera and Thunderbird.

Sry for my bad english. =]

doesn’t work at all for me
the most clients transform it back to plain text and then they see the html tags

Hey Paul,

With Campaign Monitor you can send multipart html and text, so clients that can’t render the html will show the nicely formatted plain text alternative instead.