Looking for help finding an email friendly Email Content Editor that we can build into our messaging app - used to create emails by our non-HTML / Visual-only end-users. We'd love to find a service that we can embed, API-integrate or buy the code ... can be white label or even co-brand, allowing for visual email content building, including drag/drop of dynamic elements we have, use of templates, basic formatting options, etc. Litmus Builder is totally sweet - and we love all that Litmus does. But we need a "visual pane" as well - similar to Campaign builders offered by MailChimp, Campaign Monitor, etc.

Does anyone have any recommendations fors existing products/services?