We have a scenario where a custom event would be triggered. Now I want to fire a tag when the custom event is triggered. What I did is:

1. Created a new rule.
2. In events section I used Custom Event from the dropdown.
3. filled Custom Event Type with email_submit(This is the custom event triggered via $(window).trigger('email_submit')).
4. In then section I am triggering one of the extensions(DoubleClick Floodlight).

Note: if the use page top event then everything works fine but not with custom event. Please let me know If I am doing something wrong.