UBB.threads PHP Forum Software Community Forums Resources and Customizing How Do I? How do I get automatic notifications sent to my email when a new topic is posted?

They are called watch lists.
They can be by author forum or topic.
You can elect to watch something at mystuff>Watch Lists.
From there you can elect to be notified via email.

Also in mystuff> Edit profile you can elect some other options for notification. And set a default for watched items.