In preferences, you need to have "Display complex HTML in messages" and "Allow
network access when displaying complex HTML" checked. Also uncheck and rechecked
to see if that makes a difference.
To send HTML email messages using, you need an additional header in
your outgoing mail. To set an additional header, go into Entourage,
pull down from "Tools" to "Accounts", double-click on your account,
then click on "Options". From there, type in the following values:
Header: content-type
Value: text/html
The best thing to do is create a separate account for sending HTML
mail only, because Entourage will try to encode ALL of your outgoing
messages as HTML from that point forward, so anything that doesn't
have HTML code will be all squished together and become unreadable.
Now remember, your message should be written as HTML code, so the
message would start off as:
<html>
and end with
</html>
Everything else within the HTML tags would be standard HTML code, and
be sure to make ALL of your links ABSOLUTE LINKS (include the full
URL).