After reading through the guides, this is the most simple and clear exposition of email deliverability and reputation I've ever come across. http://docs.amazon

After reading through the guides, this is the most simple and clear exposition of email deliverability and reputation I've ever come across. http://docs.amazonwebservices.com/ses/latest/DeveloperGuide/index.html?SPFSenderIDDKIM.html http://docs.amazonwebservices.com/ses/latest/DeveloperGuide/... (The mailchimp guide is also nice, and very extensive http://www.mailchimp.com/articles/email-delivery/ http://www.mailchimp.com/articles/email-delivery/ ) Seems like they'll like use a completely different IP range than EC2, and there shouldn't be any problems.. lets hope