I am using this module with newsletter module. For newsletter module, i have created text format called 'news full HTML'. For sending newsletter I am using inline style elements but there are too many style elements. I am trying to use internal style sheet wherein I define all style sheet elements on top like follows.

<style type="text/css">
a.abc { color: #cd2d2d; font-style: italic;  }
..
..
</style>

When i use this, my newsletter email ignores style line and I see a.abc.... as a plain text.

Is there a way, I can use for internal style sheet?
Thank you.