outlook rendering html emails incorrectly
I recently started to update the some of my sites to include email made with v3 to v4 and so far the update has been a lot easier to do but I have hit one minor snag. Some of the emails contain a html based button example...
<input type="button" name="linktoaccount" id="linktoaccount" value="Button" onclick="#code to link here#"/>
but in the final email the button is not being rendered instead I just get
[Button]
This worked fine in v3, is this a bug or limitation of v4 and if so are there any other items that will not render correctly?