Email sending issue through smtp server in aws.

Question

I have purchased godaddy workspace email ids. using this email id, I am sending email through smtp host 'relay-hosting.securesever.net' and port 25 when site is hosted in godaddy server.

but recently i switched hosting to aws amazon server. here i am using ec2 instance and site is  configure in iis. site is working well but email service is totally deal. I am not getting any support from godaddy because hosting and dns setting in aws. There is no any hope from aws.my gmail id is working but godaddy workspace email id is not working with aws hosting.

so anybody, which host server and port should i use or what/where should i configure in aws to work email sending through smtp/port.

 

each time i am getting error "Failure sending email."