Image Hosting on a Different Domain?

Fridays are a busy day in the land of deliverability, so I don’t have a lot of time to come up with a specific post for today. But, I thought this might interest folks here — the other day, a client asked me about using CDNs (content delivery networks) to host HTML email content, and I blogged up a quick reply over on my work blog.
(It’s true! Fridays are the new Mondays.)