Simple Email Service (SES) is one of the great AWS services for email
As per original instructions, credentials for this service can be generated from the console or you could generate it from your user credentials, AWS Secret Access Key.
This is a drive through the requirement to install an AWS S3 Bucket on a Virtual Machine, on your PC and provisioned by VirtualBox, with an FTP service that can make use of the AWS S3 Bucket for persistent distributed storage. The reason to have a S3 bucket is to allow the use of a single persistent storage for several services (for instance multiple FTP servers) running for different clients and exposed by a dedicated virtual machine.