To set up an AWS SES SendIntegration the following are required:
If working in a sandbox environment, after creating your Send Integration in EmailElement you'll need to add a “verify@prod.emailelement.com” identity AWS account (EmailElement will automatically click to verify the email, so you don't need access to the inbox), which will allow you to verify the Send Integration. Select “Create Identity” in the Identities section on the AWS SES page and follow the prompts: