Dreamhost shut down my mt notifications because I have more than 200 people on them, and evidently they shut you down if you send more than 200 emails in an hour. This was what they told me to do.
Please implement a script that batches your emails into
groups of 200 or less, and let us know, so we can turn you back on. You
can find scripts like that through google, or you can try posting on our
customer message board ar discussion.dreamhost.com.
Anyone have any ideas on how to do this?