To create anchors that do not look like links, wrap your anchored text inside the <h> tag not the <a> tag. e.g.

<a href="#anchor1">This is the link to the anchor </a>
....
<h4 id="anchor1">This is the anchored text </h4>


In Email Blasts use the following instead:

<a href="#anchor1">This is the link to the anchor </a>
....
<a name="anchor1">This is the anchored text </a>

See also working with HTML.