Amazon EC2 mail limit reached while using external smtp server to send emails

Question

Hi
I am sending lots of emails from and Amazon EC2 linux instance using grails MailSender Service(Uses Java Mail API underneath). I have configured the Mail API to use

Answer 1

There's a limit on outbound emails to stop spamming (I presume). You can request to override this: https://aws-portal.amazon.com/gp/aws/html-forms-controller/contactus/ec2-email-limit-rdns-request