Should I need to open port 25 for sending email using ses from ec2 instance

I'm using Amazon SES to send emails from ec2 instance to the app users, I've sent emails using the sandbox ses account. I want to move out of sandbox, I'm little bit confused after gone through the documents,

https://docs.aws.amazon.com/ses/latest/DeveloperGuide/request-production-access.htmlhttps://aws.amazon.com/premiumsupport/knowledge-center/ec2-port-25-throttle/

I've sent the support mail to raise the daily limits,(I don't need to send much emails, only forgot password emails + welcome).

Should I need to open port 22 on the ec2 instance? Should I need to create DNS A record?.

Thanks in advance.