I was wondering if there are any known bugs in the Mass Email function when inserting field tags into the email template (or even without a template)? When I send something like:

Your username is: <%username%>
Your password is: <%password%>
Your email address is: <%email%>

... the message is sent, but the tags are not being replaced. I've tried sending under both text and html modes as well as capitalizing the first letter of the tag (ie. <%Username%>, since that is how the fields appear in MySQLMan... but with no luck. I've not done any tweeking to the user database.