The use of CSS in the construction of your messages can be penalizing in some webmail, in terms of display and deliverability. In addition, some email clients do not handle the display of messages in HTMl format using CSS.
Integrate and layout your message in dreamweaver by disabling automatic CSS support. The tags that will be created are then coded in HTML and allow a better compatibility between browsers.
To disable CSS in dreamweaver CS3, go to the Edit menu > Preferences. Then uncheck the box "Use CSS tags instead of HTML tags".
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