To be clear, when Luis said “two different domains”, he was including sub domains. Essentially, if anything between the HTTP:// and the /index.cfm is different from one page to the next, you’ll need to follow his instructions on setting the SES Base URL on each page request. By default, the SES Base URL is set once and cached for the entire application. That’s why you need to override it in the request context on a per-page basis.
http://coldbox.org/forgebox/view/Multi-Domain-SES
~Brad