Amazon EC2: possible to use elastic load balancing across web servers in multiple regions based on location of client

It's my impression that many (all?) of the AWS IP's have been blacklisted as spam sources already, so the deliverability of mail sent from them won't be very good.

Also, using an AWS host as a mailserver seems like a bad choice to me, because it may disappear at any moment - together with the undelivered E-mail.

It would make more sense to have each AWS host hand the mail off to either a service that's paid to handle your outbound mail, or a VPS or traditional server that you control that will be available approximately 24x7. This will make it much easier to get the SPF record set up, etc., to maximize the chances that someone will see your mail.

You might take a look at Recommendations for SMTP services for massive mailing or Sendmail relay out of Amazon EC2? for more ideas.

Using the AMI Copy function, it is only possible to copy those AMI images that belong to your account. It is not possible to copy AMI images belonging to others.

http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/CopyingAMIs.html

With EC2 AMI copy, you can easily copy the Amazon Machine Images (AMIs) you own to other AWS regions and scale your applications to take advantage of AWS's geographically diverse regions.

To get around this, you can:

1. launch an instance in the region of the desired AMI
2. create a new AMI from your instance
3. copy that AMI to your desired new region.