AWS - Sending Email from EC2 or Lambda
Amazon Web Services (AWS) has put limitations in place by default on EC2 instances and Lambda serverless functions to limit abuse.
Requesting your SMTP Relay
For an EC2 server, prior to making this request, you will need to have established an elastic IP and assigned it to your server, so that the IP stays stable over time.
The SMTP relay service request form will also have instructions for setting up access for the UW Email team.
Lifting Email Sending Limitations
AWS puts email sending limitations in place on its resources by default. To request that the email sending be lifted, you must send a request from your account.